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Journal articles on the topic 'Hybrid plasmonic metasurface'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Qin, Fei, Lu Ding, Lei Zhang, Francesco Monticone, Chan Choy Chum, Jie Deng, Shengtao Mei, et al. "Hybrid bilayer plasmonic metasurface efficiently manipulates visible light." Science Advances 2, no. 1 (January 2016): e1501168. http://dx.doi.org/10.1126/sciadv.1501168.

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Metasurfaces operating in the cross-polarization scheme have shown an interesting degree of control over the wavefront of transmitted light. Nevertheless, their inherently low efficiency in visible light raises certain concerns for practical applications. Without sacrificing the ultrathin flat design, we propose a bilayer plasmonic metasurface operating at visible frequencies, obtained by coupling a nanoantenna-based metasurface with its complementary Babinet-inverted copy. By breaking the radiation symmetry because of the finite, yet small, thickness of the proposed structure and benefitting from properly tailored intra- and interlayer couplings, such coupled bilayer metasurface experimentally yields a conversion efficiency of 17%, significantly larger than that of earlier single-layer designs, as well as an extinction ratio larger than 0 dB, meaning that anomalous refraction dominates the transmission response. Our finding shows that metallic metasurface can counterintuitively manipulate the visible light as efficiently as dielectric metasurface (~20% in conversion efficiency in Lin et al.’s study), although the metal’s ohmic loss is much higher than dielectrics. Our hybrid bilayer design, still being ultrathin (~λ/6), is found to obey generalized Snell’s law even in the presence of strong couplings. It is capable of efficiently manipulating visible light over a broad bandwidth and can be realized with a facile one-step nanofabrication process.

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2

Ou, Jie, Xiao-Qing Luo, You-Lin Luo, Wei-Hua Zhu, Zhi-Yong Chen, Wu-Ming Liu, and Xin-Lin Wang. "Near-infrared dual-wavelength plasmonic switching and digital metasurface unveiled by plasmonic Fano resonance." Nanophotonics 10, no. 2 (November 11, 2020): 947–57. http://dx.doi.org/10.1515/nanoph-2020-0511.

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AbstractPlasmonic Fano resonance (FR) that contributes to multitudinous potential applications in subwavelength nanostructures can facilitate the realization of tunable wavelength selectivity for controlling light–matter interactions in metasurfaces. However, the plasmonic FR can be generated in metasurfaces with simple or complex geometries, and few of them can support flexible amplitude modulation and multiwavelength information transfer and processing. Here, we study the near-infrared plasmonic FR in a hybrid metasurface composed of concentrically hybridized parabolic-hole and circular-ring-aperture unit cells, which can induce polarization-dependent dual-wavelength passive plasmonic switching (PPS) and digital metasurface (DM). It is shown that the designable plasmonic FR can be realized by changing the geometric configurations of the unit cells. In particular, owing to the polarization-dependent characteristic of FR, it is possible to fulfill a compact dual-wavelength PPS with high ON/OFF ratios in the related optical communication bands. Moreover, such PPS that manipulates the amplitude response of the transmitted spectrum is an efficient way to reveal a 1-bit DM, which can also be rationally extended to a 2-bit DM or more. Our results suggest a pathway for studying polarization-dependent PPS and programmable metasurface devices, yielding possibilities for subwavelength nanostructures in optical communication and information processing.

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3

Spreyer, Florian, Ruizhe Zhao, Lingling Huang, and Thomas Zentgraf. "Second harmonic imaging of plasmonic Pancharatnam-Berry phase metasurfaces coupled to monolayers of WS2." Nanophotonics 9, no. 2 (February 25, 2020): 351–60. http://dx.doi.org/10.1515/nanoph-2019-0378.

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AbstractThe nonlinear processes of frequency conversion such as second harmonic generation (SHG) usually obey certain selection rules, resulting from the preservation of different kinds of physical quantities, e.g. the angular momentum. For the SHG created by a monolayer of transition-metal dichalcogenides (TMDCs) such as WS2, the valley-exciton locked selection rule predicts an SHG signal in the cross-polarization state. By combining plasmonic nanostructures with a monolayer of TMDC, a hybrid metasurface is realized, which affects this nonlinear process because of an additional polarization conversion process. Here, we observe that the plasmonic metasurface modifies the light-matter interaction with the TMDC, resulting in an SHG signal that is co-polarized with respect to the incident field, which is usually forbidden for the monolayers of TMDC. We fabricate such hybrid metasurfaces by placing plasmonic nanorods on top of a monolayer WS2 and study the valley-exciton locked SHG emission from such system for different parameters, such as wavelength and polarization. Furthermore, we show the potential of the hybrid metasurface for tailoring nonlinear processes by adding additional phase information to the SHG signal using the Pancharatnam-Berry phase effect. This allows direct tailoring of the SHG emission to the far-field.

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Hamedi, Hamid R., Emmanuel Paspalakis, and Vassilios Yannopapas. "Effective Control of the Optical Bistability of a Three-Level Quantum Emitter near a Nanostructured Plasmonic Metasurface." Photonics 8, no. 7 (July 17, 2021): 285. http://dx.doi.org/10.3390/photonics8070285.

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We study, theoretically, the phenomena optical bistability and multistability of a hybrid quantum-plasmonic system immersed within an optical ring cavity. The hybrid quantum-plasmonic system consists of a three-level V-type quantum emitter and a two-dimensional plasmonic metasurface of gold nanoshells. The quantum emitter and the plasmonic metasurface are placed in close proximity to each other so that a strong quantum interference of spontaneous emission occurs, which enables the strong modification of optical-bistability/ multistability hysteresis curves. Along with this, the strong interaction between the emitter and the plasmonic metasurface allows for active control of the corresponding bistable threshold intensity. Furthermore, we show that by varying the metasurface-emitter separation, a transition from bistability to multistability of the hybrid system is observed. Lastly, by introducing an additional incoherent pumping in the system, we have the emergence of phenomena, such as probe absorption and gain, with or without population inversion. The results may find technological application in on-chip nanoscale photonic devices, optoelectronics and solid-state quantum information science.

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5

Shields, Joe, Carlota Ruiz de Galarreta, Jacopo Bertolotti, and C. David Wright. "Enhanced Performance and Diffusion Robustness of Phase-Change Metasurfaces via a Hybrid Dielectric/Plasmonic Approach." Nanomaterials 11, no. 2 (February 18, 2021): 525. http://dx.doi.org/10.3390/nano11020525.

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Materials of which the refractive indices can be thermally tuned or switched, such as in chalcogenide phase-change alloys, offer a promising path towards the development of active optical metasurfaces for the control of the amplitude, phase, and polarization of light. However, for phase-change metasurfaces to be able to provide viable technology for active light control, in situ electrical switching via resistive heaters integral to or embedded in the metasurface itself is highly desirable. In this context, good electrical conductors (metals) with high melting points (i.e., significantly above the melting point of commonly used phase-change alloys) are required. In addition, such metals should ideally have low plasmonic losses, so as to not degrade metasurface optical performance. This essentially limits the choice to a few noble metals, namely, gold and silver, but these tend to diffuse quite readily into phase-change materials (particularly the archetypal Ge2Sb2Te5 alloy used here), and into dielectric resonators such as Si or Ge. In this work, we introduce a novel hybrid dielectric/plasmonic metasurface architecture, where we incorporated a thin Ge2Sb2Te5 layer into the body of a cubic silicon nanoresonator lying on metallic planes that simultaneously acted as high-efficiency reflectors and resistive heaters. Through systematic studies based on changing the configuration of the bottom metal plane between high-melting-point diffusive and low-melting-point nondiffusive metals (Au and Al, respectively), we explicitly show how thermally activated diffusion can catastrophically and irreversibly degrade the optical performance of chalcogenide phase-change metasurface devices, and how such degradation can be successfully overcome at the design stage via the incorporation of ultrathin Si3N4 barrier layers between the gold plane and the hybrid Si/Ge2Sb2Te5 resonators. Our work clarifies the importance of diffusion of noble metals in thermally tunable metasurfaces and how to overcome it, thus helping phase-change-based metasurface technology move a step closer towards the realization of real-world applications.

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6

Zeng, Shuwen, Guozhen Liang, Alexandre Gheno, Sylvain Vedraine, Bernard Ratier, Ho-Pui Ho, and Nanfang Yu. "Plasmonic Metasensors Based on 2D Hybrid Atomically Thin Perovskite Nanomaterials." Nanomaterials 10, no. 7 (June 30, 2020): 1289. http://dx.doi.org/10.3390/nano10071289.

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In this work, we have designed highly sensitive plasmonic metasensors based on atomically thin perovskite nanomaterials with a detection limit up to 10−10 refractive index units (RIU) for the target sample solutions. More importantly, we have improved phase singularity detection with the Goos–Hänchen (GH) effect. The GH shift is known to be closely related to optical phase signal changes; it is much more sensitive and sharp than the phase signal in the plasmonic condition, while the experimental measurement setup is much more compact than that of the commonly used interferometer scheme to exact the phase signals. Here, we have demonstrated that plasmonic sensitivity can reach a record-high value of 1.2862 × 109 µm/RIU with the optimum configurations for the plasmonic metasensors. The phase singularity-induced GH shift is more than three orders of magnitude larger than those achievable in other metamaterial schemes, including Ag/TiO2 hyperbolic multilayer metamaterials (HMMs), metal–insulator–metal (MIM) multilayer waveguides with plasmon-induced transparency (PIT), and metasurface devices with a large phase gradient. GH sensitivity has been improved by more than 106 times with the atomically thin perovskite metasurfaces (1.2862 × 109 µm/RIU) than those without (918.9167 µm/RIU). The atomically thin perovskite nanomaterials with high absorption rates enable precise tuning of the depth of the plasmonic resonance dip. As such, one can optimize the structure to reach near zero-reflection at the resonance angle and the associated sharp phase singularity, which leads to a strongly enhanced GH lateral shift at the sensor interface. By integrating the 2D perovskite nanolayer into a metasurface structure, a strong localized electric field enhancement can be realized and GH sensitivity was further improved to 1.5458 × 109 µm/RIU. We believe that this enhanced electric field together with the significantly improved GH shift would enable single molecular or even submolecular detection for hard-to-identify chemical and biological markers, including single nucleotide mismatch in the DNA sequence, toxic heavy metal ions, and tumor necrosis factor-α (TNFα).

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Xu, Xiaofeng, Xiao-Qing Luo, Qinke Liu, Yan Li, Weihua Zhu, Zhiyong Chen, Wuming Liu, and Xin-Lin Wang. "Plasmonic Sensing and Switches Enriched by Tailorable Multiple Fano Resonances in Rotational Misalignment Metasurfaces." Nanomaterials 12, no. 23 (November 28, 2022): 4226. http://dx.doi.org/10.3390/nano12234226.

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Fano resonances that feature strong field enhancement in the narrowband range have motivated extensive studies of light–matter interactions in plasmonic nanomaterials. Optical metasurfaces that are subject to different mirror symmetries have been dedicated to achieving nanoscale light manipulation via plasmonic Fano resonances, thus enabling advantages for high-sensitivity optical sensing and optical switches. Here, we investigate the plasmonic sensing and switches enriched by tailorable multiple Fano resonances that undergo in-plane mirror symmetry or asymmetry in a hybrid rotational misalignment metasurface, which consists of periodic metallic arrays with concentric C-shaped- and circular-ring-aperture unit cells. We found that the plasmonic double Fano resonances can be realized by undergoing mirror symmetry along the X-axis. The plasmonic multiple Fano resonances can be tailored by adjusting the level of the mirror asymmetry along the Z-axis. Moreover, the Fano-resonance-based plasmonic sensing that suffer from mirror symmetry or asymmetry can be implemented by changing the related structural parameters of the unit cells. The passive dual-wavelength plasmonic switches of specific polarization can be achieved within mirror symmetry and asymmetry. These results could entail benefits for metasurface-based devices, which are also used in sensing, beam-splitter, and optical communication systems.

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Abdollahramezani, Sajjad, Hossein Taghinejad, Tianren Fan, Mahmood Reza Marzban, Ali A. Eftekhar, and Ali Adibi. "Reconfigurable multifunctional metasurfaces employing hybrid phase-change plasmonic architecture." Nanophotonics 11, no. 17 (August 15, 2022): 3883–93. http://dx.doi.org/10.1515/nanoph-2022-0271.

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Abstract We present a hybrid device platform for creating an electrically reconfigurable metasurface formed by the integration of plasmonic nanostructures with phase-change material germanium antimony telluride (GST). By changing the phase of GST from amorphous to crystalline through Joule heating, a large range of responses from the metasurface can be achieved. Furthermore, by using the intermediate phases of GST, the metasurface can interact with the incident light in both over-coupling and under-coupling regimes, leading to an inherently broadband response. Through a detailed investigation of the nature of the fundamental modes, we demonstrate that changing the crystalline phase of the GST at the pixel-level enables an effective control over the key properties (i.e., amplitude, phase, and polarization) of incident light. This leads to the realization of a broadband electrically tunable multifunctional metadevice enabling beam switching, focusing, steering, and polarization conversion. Such a hybrid structure offers a high-speed, broadband, and nonvolatile reconfigurable paradigm for electrically programmable optical devices such as switches, holograms, and polarimeters.

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9

Negm, Ayman, Mohamed Bakr, Matiar Howlader, and Shirook Ali. "The Design of a Switchable Infrared Hybrid Plasmonic Metasurface Absorber for Energy Harvesting Applications." Applied Computational Electromagnetics Society 35, no. 11 (February 4, 2021): 1340–41. http://dx.doi.org/10.47037/2020.aces.j.351139.

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A plasmonic switchable polarization-insensitive metasurface absorber is proposed. The design provides two modes of operation by employing phase-change material in semiconductor and metallic phases. In this paper, we study the switchable absorption behavior of the metasurface operating in a dual-band and single-band modes targeting the mid-infrared range suitable for energy harvesting applications such as thermophotovoltaics. The design is optimized using a global optimization technique.

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10

Rifat, Ahmmed, Mohsen Rahmani, Lei Xu, and Andrey Miroshnichenko. "Hybrid Metasurface Based Tunable Near-Perfect Absorber and Plasmonic Sensor." Materials 11, no. 7 (June 27, 2018): 1091. http://dx.doi.org/10.3390/ma11071091.

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11

Butt, Muhammad Ali, and Nikolai Lvovich Kazansky. "Narrowband perfect metasurface absorber based on impedance matching." Photonics Letters of Poland 12, no. 3 (September 30, 2020): 88. http://dx.doi.org/10.4302/plp.v12i3.1041.

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We presented a numerical investigation of a metamaterial narrowband perfect absorber conducted via a finite element method based on commercially available COMSOL software. The periodic array of silicon meta-atoms (MAs) are placed on 80 nm thick gold layer. The broadband light at normal incidence is blocked by the gold layer and silicon MAs are used to excite the surface plasmon by scattering light through it. Maximum absorption of 95.7 % is obtained at the resonance wavelength of 1137.5 nm due to the perfect impedance matching of the electric and magnetic dipoles. The absorption is insensitive to the wide-angle of incidence ranging from 0 to 80 degrees. We believe that the proposed metamaterial device can be utilized in solar photovoltaic and biochemical sensing applications. Full Text: PDF ReferencesY. Cheng, X.S. Mao, C. Wu, L. Wu, R.Z. Gong, "Infrared non-planar plasmonic perfect absorber for enhanced sensitive refractive index sensing", Optical Materials, 53, 195-200 (2016). CrossRef S. S. Mirshafieyan, D.A. Gregory, "Electrically tunable perfect light absorbers as color filters and modulators", Scientific Reports,8, 2635 (2018). CrossRef D.M. Nguyen, D. Lee, J. Rho, "Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths", Scientific Reports, 7, 2611 (2017). CrossRef Y. Sun, Y. Ling, T. Liu, L. Huang, "Electro-optical switch based on continuous metasurface embedded in Si substrate", AIP Advances, 5, 117221 (2015). CrossRef H. Chu, Q. Li, B. Liu, J. Luo, S. Sun, Z. H. Hang, L. Zhou, Y. Lai, "A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials", Light: Science & Applications, 7, 50 (2018). CrossRef S. K. Patel, S. Charola, J. Parmar, M. Ladumor, "Broadband metasurface solar absorber in the visible and near-infrared region", Materials Research Express, 6, 086213 (2019). CrossRef Q. Qian, S. Ti, C. Wang, "All-dielectric ultra-thin metasurface angular filter", Optics Letters, 44, 3984 (2019). CrossRef P. Yu et al., "Broadband Metamaterial Absorbers", Advanced Optical Materials, 7, 1800995 (2019). CrossRef Y. J. Kim et al., "Flexible ultrathin metamaterial absorber for wide frequency band, based on conductive fibers", Science and Technology of advanced materials, 19, 711-717 (2018). CrossRef N.L. Kazanskiy, S.N. Khonina, M.A. Butt, "Plasmonic sensors based on Metal-insulator-metal waveguides for refractive index sensing applications: A brief review", Physica E, 117, 113798 (2020). CrossRef H. E. Nejad, A. Mir, A. Farmani, "Supersensitive and Tunable Nano-Biosensor for Cancer Detection", IEEE Sensors Journal, 19, 4874-4881 (2019). CrossRef

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12

Ma, Zhenhe, Xianghe Meng, Xiaodi Liu, Guangyuan Si, and Yan Jun Liu. "Liquid Crystal Enabled Dynamic Nanodevices." Nanomaterials 8, no. 11 (October 23, 2018): 871. http://dx.doi.org/10.3390/nano8110871.

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Inspired by the anisotropic molecular shape and tunable alignment of liquid crystals (LCs), investigations on hybrid nanodevices which combine LCs with plasmonic metasurfaces have received great attention recently. Since LCs possess unique electro-optical properties, developing novel dynamic optical components by incorporating nematic LCs with nanostructures offers a variety of practical applications. Owing to the large birefringence of LCs, the optical properties of metamaterials can be electrically or optically modulated over a wide range. In this review article, we show different elegant designs of metasurface based nanodevices integrated into LCs and explore the tuning factors of transmittance/extinction/scattering spectra. Moreover, we review and classify substantial tunable devices enabled by LC-plasmonic interactions. These dynamically tunable optoelectronic nanodevices and components are of extreme importance, since they can enable a significant range of applications, including ultra-fast switching, modulating, sensing, imaging, and waveguiding. By integrating LCs with two dimensional metasurfaces, one can manipulate electromagnetic waves at the nanoscale with dramatically reduced sizes. Owing to their special electro-optical properties, recent efforts have demonstrated that more accurate manipulation of LC-displays can be engineered by precisely controlling the alignment of LCs inside small channels. In particular, device performance can be significantly improved by optimizing geometries and the surrounding environmental parameters.

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13

Chen, Chen, Liu, Cheng, Zhou, Xiao, and Chen. "Ultra-Narrow Band Mid-Infrared Perfect Absorber Based on Hybrid Dielectric Metasurface." Nanomaterials 9, no. 10 (September 20, 2019): 1350. http://dx.doi.org/10.3390/nano9101350.

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Mid-infrared perfect absorbers (PAs) based on metamaterials have many applications in material analysis and spectral detection thanks to the associated strong light–matter interaction. Most of the PAs are built as ‘metal nanostructure’-insulator-metals (MIM). In this paper, we propose an ultra-narrow band absorber based on dielectric metasurface with a metal film substrate. The absorptance comes from the plasmonic absorption in the metal film, where the absorption is enhanced (while the band of that is compressed) by the super cavity effect of the dielectric metasurface. Based on our numerical calculation, the full-width at half-maximum (FWHM) can reach 67 nm at 8 μm (8‰), which is more than two orders of magnitude smaller than the resonance wavelength and much narrower than the theoretical FWHMs of MIM absorbers. Moreover, we studied their application in infrared thermal imaging, which also has more benefits than MIM absorbers. This kind of hybrid dielectric metasurface provides a new route to achieve ultra-narrow band perfect absorbers in the mid-infrared regime and can be broadly applied in detectors, thermal emitters and bio-spectroscopy.

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Zhang, Yuqin, Jianshan An, Xingqi An, Xiangyu Zeng, Changwei He, Guiyuan Liu, Chuanfu Cheng, and Hongsheng Song. "Metasurfaces for Amplitude-Tunable Superposition of Plasmonic Orbital Angular Momentum States." Materials 15, no. 18 (September 13, 2022): 6334. http://dx.doi.org/10.3390/ma15186334.

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The superposition of orbital angular momentum (OAM) in a surface plasmon polariton (SPP) field has attracted much attention in recent years for its potential applications in classical physics problems and quantum communications. The flexible adjustment of the amplitudes of two OAM states can provide more freedom for the manipulation of superposed states. Here, we propose a type of plasmonic metasurface consisting of segmented spiral-shaped nanoslits that not only can generate the superposition of two OAM states with arbitrary topological charges (TCs), but also can independently modulate their relative amplitudes in a flexible manner. The TCs of two OAM states can be simultaneously modulated by incident light, the rotation rate of the nanoslits, and the geometric parameters of the segmented spiral. The relative amplitudes of the two OAM states are freely controllable by meticulously tuning the width of the nanoslits. Under a circularly polarized beam illumination, two OAM states of opposite TCs can be superposed with various weightings. Furthermore, hybrid superposition with different TCs is also demonstrated. The presented design scheme offers an opportunity to develop practical plasmonic devices and on-chip applications.

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15

Jiang, Li, Shuwen Zeng, Qingling Ouyang, Xuan-Quyen Dinh, Philippe Coquet, Junle Qu, Sailing He, and Ken-Tye Yong. "Graphene-TMDC-Graphene Hybrid Plasmonic Metasurface for Enhanced Biosensing: A Theoretical Analysis." physica status solidi (a) 214, no. 12 (October 17, 2017): 1700563. http://dx.doi.org/10.1002/pssa.201700563.

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16

Sebek, Matej, Ahmed Elbana, Arash Nemati, Jisheng Pan, Ze Xiang Shen, Minghui Hong, Xiaodi Su, Nguyen Thi Kim Thanh, and Jinghua Teng. "Hybrid Plasmonics and Two-Dimensional Materials: Theory and Applications." Journal of Molecular and Engineering Materials 08, no. 01n02 (March 2020): 2030001. http://dx.doi.org/10.1142/s2251237320300016.

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The inherent thinness of two-dimensional 2D materials limits their efficiency of light-matter interactions and the high loss of noble metal plasmonic nanostructures limits their applicability. Thus, a combination of 2D materials and plasmonics is highly attractive. This review describes the progress in the field of 2D plasmonics, which encompasses 2D plasmonic materials and hybrid plasmonic-2D materials structures. Novel plasmonic 2D materials, plasmon-exciton interaction within 2D materials and applications comprising sensors, photodetectors and, metasurfaces are discussed.

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17

Shen, Hongyang, Chunyang Liu, Fengxiang Liu, Yaqi Jin, Banghong Guo, Zhongchao Wei, Faqiang Wang, Chunhua Tan, Xuguang Huang, and Hongyun Meng. "Multi-band plasmonic absorber based on hybrid metal-graphene metasurface for refractive index sensing application." Results in Physics 23 (April 2021): 104020. http://dx.doi.org/10.1016/j.rinp.2021.104020.

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18

Kang, Evan S. H., Mina Shiran Chaharsoughi, Stefano Rossi, and Magnus P. Jonsson. "Hybrid plasmonic metasurfaces." Journal of Applied Physics 126, no. 14 (October 14, 2019): 140901. http://dx.doi.org/10.1063/1.5116885.

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19

Hu, Yunsheng, Yihua Bai, Qing Zhang, and Yuanjie Yang. "Electrically controlled molecular fingerprint retrieval with van der Waals metasurface." Applied Physics Letters 121, no. 14 (October 3, 2022): 141701. http://dx.doi.org/10.1063/5.0111940.

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Polaritons in two-dimensional van der Waals (vdW) materials possess extreme light confinement, which have emerged as a potential platform for next-generation biosensing and infrared spectroscopy. Here, we propose an ultra-thin and electric tunable graphene/hexagonal boron nitride/graphene metasurface for detecting molecular fingerprints over a broad spectrum. The vdW metasurface supports hybrid plasmon–phonon polariton resonance with high-quality factor (Q > 120) and electrically controlled broadband spectra tunability from 6.5 to 7 μm. After coating a thin layer of bio-molecular (e.g., CBP) on top of the metasurface, the molecular absorption signatures can be readout at multiple spectral points and, thus, achieve broadband fingerprint retrieval of bio-molecules. Additionally, our electric tunable metasurface works as an integrated graphene-based field-effect transistor device, without the need of multiple resonance generators such as angle-resolved or pixelated dielectric metasurfaces for broadband spectra scanning, thereby paving the way for highly sensitive, miniaturized, and electrically addressed biosensing and infrared spectroscopy.

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Rufangura, Patrick, Iryna Khodasevych, Arti Agrawal, Matteo Bosi, Thomas G. Folland, Joshua D. Caldwell, and Francesca Iacopi. "Enhanced Absorption with Graphene-Coated Silicon Carbide Nanowires for Mid-Infrared Nanophotonics." Nanomaterials 11, no. 9 (September 8, 2021): 2339. http://dx.doi.org/10.3390/nano11092339.

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The mid-infrared (MIR) is an exciting spectral range that also hosts useful molecular vibrational fingerprints. There is a growing interest in nanophotonics operating in this spectral range, and recent advances in plasmonic research are aimed at enhancing MIR infrared nanophotonics. In particular, the design of hybrid plasmonic metasurfaces has emerged as a promising route to realize novel MIR applications. Here we demonstrate a hybrid nanostructure combining graphene and silicon carbide to extend the spectral phonon response of silicon carbide and enable absorption and field enhancement of the MIR photon via the excitation and hybridization of surface plasmon polaritons and surface phonon polaritons. We combine experimental methods and finite element simulations to demonstrate enhanced absorption of MIR photons and the broadening of the spectral resonance of graphene-coated silicon carbide nanowires. We also indicate subwavelength confinement of the MIR photons within a thin oxide layer a few nanometers thick, sandwiched between the graphene and silicon carbide. This intermediate shell layer is characteristically obtained using our graphitization approach and acts as a coupling medium between the core and outer shell of the nanowires.

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Arik, Kamalodin, Omid Hemmatyar, and Zahra Kavehvash. "Beam Manipulation by Hybrid Plasmonic-Dielectric Metasurfaces." Plasmonics 15, no. 3 (December 2, 2019): 639–45. http://dx.doi.org/10.1007/s11468-019-01073-x.

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Cotrufo, Michele, Liuyang Sun, Junho Choi, Andrea Alù, and Xiaoqin Li. "Enhancing functionalities of atomically thin semiconductors with plasmonic nanostructures." Nanophotonics 8, no. 4 (March 20, 2019): 577–98. http://dx.doi.org/10.1515/nanoph-2018-0185.

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AbstractAtomically thin, two-dimensional, transition-metal dichalcogenide (TMD) monolayers have recently emerged as a versatile platform for optoelectronics. Their appeal stems from a tunable direct bandgap in the visible and near-infrared regions, the ability to enable strong coupling to light, and the unique opportunity to address the valley degree of freedom over atomically thin layers. Additionally, monolayer TMDs can host defect-bound localized excitons that behave as single-photon emitters, opening exciting avenues for highly integrated 2D quantum photonic circuitry. By introducing plasmonic nanostructures and metasurfaces, one may effectively enhance light harvesting, direct valley-polarized emission, and route valley index. This review article focuses on these critical aspects to develop integrated photonic and valleytronic applications by exploiting exciton–plasmon coupling over a new hybrid material platform.

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He, Zhihui, Weiwei Xue, Wei Cui, Chunjiang Li, Zhenxiong Li, Lihui Pu, Jiaojiao Feng, Xintao Xiao, Xuyang Wang, and and Gang Li. "Tunable Fano Resonance and Enhanced Sensing in a Simple Au/TiO2 Hybrid Metasurface." Nanomaterials 10, no. 4 (April 5, 2020): 687. http://dx.doi.org/10.3390/nano10040687.

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We investigate Fano resonances and sensing enhancements in a simple Au/TiO2 hybrid metasurface through the finite-different time-domain (FDTD) simulation and coupled mode theory (CMT) analysis. The results show that the Fano resonance in the proposed simple metasurface is caused by the destructive interaction between the surface plasmon polaritons (SPPs) and the local surface plasmon resonances (LSPRs), the quality factor and dephasing time for the Fano resonance can be effectively tuned by the thickness of Au and TiO2 structures, the length of each unit in x and y directions, as well as the structural defect. In particular, single Fano resonance splits into multiple Fano resonances caused by a stub-shaped defect, and multiple Fano resonances can be tuned by the size and position of the stub-shaped defect. Moreover, we also find that the sensitivity in the Au/TiO2 hybrid metasurface with the stub-shaped defect can reach up to 330 nm/RIU and 535 nm/RIU at the Fano resonance 1 and Fano resonance 2, which is more than three times as sensitive in the Au/TiO2 hybrid metasurface without the stub-shaped defect, and also higher than that in the TiO2 metasurface reported before. These results may provide further understanding of Fano resonances and guidance for designing ultra-high sensitive refractive index sensors.

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Reinhard, Björn M., Wonmi Ahn, Yan Hong, Svetlana V. Boriskina, and Xin Zhao. "Template-Guided Self-Assembly of Discrete Optoplasmonic Molecules and Extended Optoplasmonic Arrays." Nanophotonics 4, no. 3 (January 1, 2015): 250–60. http://dx.doi.org/10.1515/nanoph-2015-0019.

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Abstract The integration of metallic and dielectric building blocks into optoplasmonic structures creates new electromagnetic systems in which plasmonic and photonic modes can interact in the near-, intermediate- and farfield. The morphology-dependent electromagnetic coupling between the different building blocks in these hybrid structures provides a multitude of opportunities for controlling electromagnetic fields in both spatial and frequency domain as well as for engineering the phase landscape and the local density of optical states. Control over any of these properties requires, however, rational fabrication approaches for well-defined metal-dielectric hybrid structures. Template-guided self-assembly is a versatile fabrication method capable of integrating metallic and dielectric components into discrete optoplasmonic structures, arrays, or metasurfaces. The structural flexibility provided by the approach is illustrated by two representative implementations of optoplasmonic materials discussed in this review. In optoplasmonic atoms or molecules optical microcavities (OMs) serve as whispering gallery mode resonators that provide a discrete photonic mode spectrum to interact with plasmonic nanostructures contained in the evanescent fields of the OMs. In extended hetero-nanoparticle arrays in-plane scattered light induces geometry-dependent photonic resonances that mix with the localized surface plasmon resonances of the metal nanoparticles.We characterize the fundamental electromagnetic working principles underlying both optoplasmonic approaches and review the fabrication strategies implemented to realize them.

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Habib, Mohsin, Ekmel Ozbay, and Humeyra Caglayan. "Tuning Plasmon Induced Reflectance with Hybrid Metasurfaces." Photonics 6, no. 1 (March 16, 2019): 29. http://dx.doi.org/10.3390/photonics6010029.

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Electrically tunable metasurfaces with graphene offer design flexibility to efficiently manipulate and control light. These metasurfaces can be used to generate plasmon-induced reflectance (PIR), which can be tuned by electrostatic doping of the graphene layer. We numerically investigated two designs for tunable PIR devices using the finite difference time-domain (FDTD) method. The first design is based on two rectangular antennas of the same size and a disk; in the second design, two parallel rectangular antennas with different dimensions are used. The PIR-effect was achieved by weak hybridization of two bright modes in both devices and tuned by changing the Fermi level of graphene. A total shift of ∼362 nm was observed in the design with the modulation depth of 53% and a spectral contrast ratio of 76%. These tunable PIR devices can be used for tunable enhanced biosensing and switchable systems.

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Lesina, Antonino Calà, Jarno van der Kolk, Pierre Berini, and Lora Ramunno. "Computational Electrodynamics - A Powerful Tool for Nanophotonics and Microscopy." MRS Advances 3, no. 14 (2018): 753–60. http://dx.doi.org/10.1557/adv.2018.1.

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ABSTRACTComputational electrodynamics simulations provide a critical complement to experimental investigations for the understanding of light-matter interaction in complex systems. Its success is due in part to its relative simplicity and ease of use, coupled with its broad applicability to many material systems and optical processes. First, we will review our recent work in nanophotonics. While computational electrodynamics has been, and continues to be, very widely used in plasmonics, there are significant issues in convergence and accuracy, which we have studied in detail, and which sometimes point to the need for parallel computing. With access to large computational resources, we are able to study complex arrangements of dielectric and plasmonic objects, including metallic nanoparticle distributions for color production, hybrid dielectric/plasmonic nanoantennas for enhancement of third harmonic generation, and metasurfaces for nonlinear light control and structuring. Second, we will discuss our computational electrodynamics simulations of nonlinear optical microscopy experiments. Our tool includes high numerical aperture light sources, propagation through heterogeneous media, nonlinear near-field interaction, subsequent propagation to the far field, and integration over a collecting lens. We have used this to unravel the image formation mechanisms in nonlinear optical microscopy, such as CARS and SHG microscopy. We find that the images are not a one-to-one density map of the object, but rather that the sub-micrometer to nanometer structure of the object, along with the coherence of parametric nonlinear optical processes, can be imprinted in the image in surprising ways.

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Chachamovitz, Yoav, and Guy Bartal. "Miniaturizing nanoantennas with hybrid photonic-plasmonic modes for improved metasurfaces." Optics Letters 45, no. 17 (August 28, 2020): 4871. http://dx.doi.org/10.1364/ol.396257.

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Rim, Wi-Song, and Kwang-Hyon Kim. "Broadband visible-near infrared and deep ultraviolet generation by four-wave mixing and high-order stimulated Raman scattering from the hybrid metasurfaces of plasmonic nanoantennae and Raman-active nanoparticles." Physical Chemistry Chemical Physics 21, no. 48 (2019): 26615–20. http://dx.doi.org/10.1039/c9cp05186d.

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Spreyer, Florian, Claudia Ruppert, Philip Georgi, and Thomas Zentgraf. "Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS₂–Plasmonic Hybrid Metasurfaces." ACS Nano 15, no. 10 (October 4, 2021): 16719–28. http://dx.doi.org/10.1021/acsnano.1c06693.

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Spreyer, Florian, Claudia Ruppert, Philip Georgi, and Thomas Zentgraf. "Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS₂–Plasmonic Hybrid Metasurfaces." ACS Nano 15, no. 10 (October 4, 2021): 16719–28. http://dx.doi.org/10.1021/acsnano.1c06693.

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Wang, Feng, and Hayk Harutyunyan. "Tailoring the quality factors and nonlinear response in hybrid plasmonic-dielectric metasurfaces." Optics Express 26, no. 1 (January 2, 2018): 120. http://dx.doi.org/10.1364/oe.26.000120.

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Magnozzi, Michele, Yannic Brasse, Tobias A. F. König, Francesco Bisio, Eva Bittrich, Andreas Fery, and Maurizio Canepa. "Plasmonics of Au/Polymer Core/Shell Nanocomposites for Thermoresponsive Hybrid Metasurfaces." ACS Applied Nano Materials 3, no. 2 (January 27, 2020): 1674–82. http://dx.doi.org/10.1021/acsanm.9b02403.

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Yan, Zhendong, Chaojun Tang, Guohua Wu, Yumei Tang, Ping Gu, Jing Chen, Zhengqi Liu, and Zhong Huang. "Perfect Absorption and Refractive-Index Sensing by Metasurfaces Composed of Cross-Shaped Hole Arrays in Metal Substrate." Nanomaterials 11, no. 1 (December 29, 2020): 63. http://dx.doi.org/10.3390/nano11010063.

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Achieving perfect electromagnetic wave absorption with a sub-nanometer bandwidth is challenging, which, however, is desired for high-performance refractive-index sensing. In this work, we theoretically study metasurfaces for sensing applications based on an ultra-narrow band perfect absorption in the infrared region, whose full width at half maximum (FWHM) is only 1.74 nm. The studied metasurfaces are composed of a periodic array of cross-shaped holes in a silver substrate. The ultra-narrow band perfect absorption is related to a hybrid mode, whose physical mechanism is revealed by using a coupling model of two oscillators. The hybrid mode results from the strong coupling between the magnetic resonances in individual cross-shaped holes and the surface plasmon polaritons on the top surface of the silver substrate. Two conventional parameters, sensitivity (S) and figure of merit (FOM), are used to estimate the sensing performance, which are 1317 nm/RIU and 756, respectively. Such high-performance parameters suggest great potential for the application of label-free biosensing.

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Wang, Xianjun, Hongyun Meng, Shuying Deng, Chaode Lao, Zhongchao Wei, Faqiang Wang, Chunhua Tan, and Xuguang Huang. "Hybrid Metal Graphene-Based Tunable Plasmon-Induced Transparency in Terahertz Metasurface." Nanomaterials 9, no. 3 (March 6, 2019): 385. http://dx.doi.org/10.3390/nano9030385.

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In this paper, we look at the work of a classical plasmon-induced transparency (PIT) based on metasurface, including a periodic lattice with a cut wire (CW) and a pair of symmetry split ring resonators (SSR). Destructive interference of the ‘bright-dark’ mode originated from the CW and a pair of SSRs and resulted in a pronounced transparency peak at 1.148 THz, with 85% spectral contrast ratio. In the simulation, the effects of the relative distance between the CW and the SSR pair resonator, as well as the vertical distance of the split gap, on the coupling strength of the PIT effect, have been investigated. Furthermore, we introduce a continuous graphene strip monolayer into the metamaterial and by manipulating the Fermi level of the graphene we see a complete modulation of the amplitude and line shape of the PIT transparency peak. The near-field couplings in the relative mode resonators are quantitatively understood by coupled harmonic oscillator model, which indicates that the modulation of the PIT effect result from the variation of the damping rate in the dark mode. The transmitted electric field distributions with polarization vector clearly confirmed this conclusion. Finally, a group delay t g of 5.4 ps within the transparency window is achieved. We believe that this design has practical applications in terahertz (THz) functional devices and slow light devices.

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Lee, Yohan, Jeongse Yun, Sun‐Je Kim, Minjee Seo, Sungjun In, Hee‐Dong Jeong, Seung‐Yeol Lee, Namkyoo Park, Taek Dong Chung, and Byoungho Lee. "High‐Speed Transmission Control in Gate‐Tunable Metasurfaces Using Hybrid Plasmonic Waveguide Mode." Advanced Optical Materials 8, no. 22 (September 22, 2020): 2001256. http://dx.doi.org/10.1002/adom.202001256.

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Kan, Yinhui, Fei Ding, Changying Zhao, and Sergey I. Bozhevolnyi. "Directional off-Normal Photon Streaming from Hybrid Plasmon-Emitter Coupled Metasurfaces." ACS Photonics 7, no. 5 (April 15, 2020): 1111–16. http://dx.doi.org/10.1021/acsphotonics.0c00196.

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Joseph, Shereena, Saurabh Pandey, Swagato Sarkar, and Joby Joseph. "Bound states in the continuum in resonant nanostructures: an overview of engineered materials for tailored applications." Nanophotonics 10, no. 17 (November 9, 2021): 4175–207. http://dx.doi.org/10.1515/nanoph-2021-0387.

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Abstract From theoretical model to experimental realization, the bound state in the continuum (BIC) is an emerging area of research interest in the last decade. In the initial years, well-established theoretical frameworks explained the underlying physics for optical BIC modes excited in various symmetrical configurations. Eventually, in the last couple of years, optical-BICs were exploited as a promising tool for experimental realization with advanced nanofabrication techniques for numerous breakthrough applications. Here, we present a review of the evolution of BIC modes in various symmetry and functioning mediums along with their application. More specifically, depending upon the nature of the interacting medium, the excitations of BIC modes are classified into the pure dielectric and lossy plasmonic BICs. The dielectric constituents are again classified as photonic crystal functioning in the subwavelength regime, influenced by the diffraction modes and metasurfaces for interactions far from the diffraction regime. More importantly, engineered functional materials evolved with the pure dielectric medium are explored for hybrid-quasi-BIC modes with huge-quality factors, exhibiting a promising approach to trigger the nanoscale phenomena more efficiently. Similarly, hybrid modes instigated by the photonic and plasmonic constituents can replace the high dissipative losses of metallic components, sustaining the high localization of field and high figure of merit. Further, the discussions are based on the applications of the localized BIC modes and high-quality quasi-BIC resonance traits in the nonlinear harmonic generation, refractometric sensing, imaging, lasing, nanocavities, low loss on-chip communication, and as a photodetector. The topology-controlled beam steering and, chiral sensing has also been briefly discussed.

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Gerasimov, Vasily V., Ruslan R. Hafizov, Sergei A. Kuznetsov, and Pavel A. Lazorskiy. "Exploiting Localized Surface Plasmon Resonances in Subwavelength Spiral Disks for THz Thin Film Sensing." Applied Sciences 10, no. 10 (May 22, 2020): 3595. http://dx.doi.org/10.3390/app10103595.

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In this paper, we studied the sensing performance of metasurfaces comprised by spiral-disk-shaped metallic elements patterned on polypropylene substrates, which exhibited localized surface plasmon resonances in the low-frequency region of the terahertz (THz) spectrum (0.2–0.5 THz). Optimal designs of spiral disks with C-shaped resonators placed near the disks were determined and fabricated. The experimentally measured transmittance spectra of the samples coated with very thin photoresistive layers (d ~ 10−4–10−3 λ) showed good agreement with the simulations. The resonance frequency shift Δf increases with increasing d, while saturating near d = 50 µm. The narrow-band magnetic dark modes excited on symmetrical spiral disks with a 90° C-resonator demonstrated very high figure of merit (FOM) values reaching 1670 (RIU·mm)−1 at 0.3 μm thick analyte. The hybrid high order resonances excited on asymmetrical densely packed spiral disks showed about two times larger FOM values (up to 2950 (RIU·mm)−1) compared to symmetrical distantly spaced spirals that resembled the best FOM results found in the literature for metasurfaces fabricated with a similar technique. The demonstrated high sensing performance of spiral disks is evaluated to be promising for bio-sensing applications in the THz range.

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Yang, Guoce, Yijie Niu, Hong Wei, Benfeng Bai, and Hong-Bo Sun. "Greatly amplified spontaneous emission of colloidal quantum dots mediated by a dielectric-plasmonic hybrid nanoantenna." Nanophotonics 8, no. 12 (November 13, 2019): 2313–19. http://dx.doi.org/10.1515/nanoph-2019-0332.

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AbstractOptical nanoantennas can efficiently harvest electromagnetic energy from nanoscale space and boost the local radiation to the far field. The dielectric-metal nanogap is a novel design that can help to overcome the core issue of optical loss in all-metal nanostructures while enabling photon density of states larger than that in all-dielectric counterparts. This article reports that a crystalline spherical silicon nanoparticle on metal film (SiNPoM) nanoantenna can largely enhance the spontaneous emission intensity of quantum dots by an area-normalized factor of 69 and the decay rate by 42-fold compared with quantum dots on glass. A high total quantum efficiency of over 80%, including ~20% for far-field radiation and ~60% for surface plasmon polaritons, is obtained in simulation. Thanks to not only the low optical loss in dielectric nanoparticles but also the appropriate gap thickness which weakens the non-radiative decay due to the quenching from metal. Mie resonant modes additionally provide the flexible control of far-field emission patterns. Such a simple optical nanoantenna can be combined with various nanoscale optical emitters and easily extended to form large area metasurfaces functioning as active regions in light-emitting devices in applications such as advanced display, wireless optical communication, and quantum technology.

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Usik, M. O., O. G. Kharitonova, D. A. Kuzmin, I. V. Bychkov, V. A. Tolkachev, V. G. Shavrov, and V. V. Temnov. "Excitation of surface plasmon-polaritons in hybrid graphene metasurface - vanadium dioxidenanostructure using prism coupling." Челябинский физико-математический журнал 6, no. 3 (2021): 375–83. http://dx.doi.org/10.47475/2500-0101-2021-16311.

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41

Camellini, Andrea, Andrea Mazzanti, Carlo Mennucci, Christian Martella, Alessio Lamperti, Alessandro Molle, Francesco Buatier de Mongeot, Giuseppe Della Valle, and Margherita Zavelani‐Rossi. "Evidence of Plasmon Enhanced Charge Transfer in Large‐Area Hybrid Au–MoS 2 Metasurface." Advanced Optical Materials 8, no. 24 (October 27, 2020): 2000653. http://dx.doi.org/10.1002/adom.202000653.

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42

Ni, Peinan, Andrès De Luna Bugallo, Victor M. Arellano Arreola, Mario Flores Salazar, Elodie Strupiechonski, Virginie Brändli, Rajath Sawant, Blandine Alloing, and Patrice Genevet. "Gate-Tunable Emission of Exciton–Plasmon Polaritons in Hybrid MoS2-Gap-Mode Metasurfaces." ACS Photonics 6, no. 7 (June 17, 2019): 1594–601. http://dx.doi.org/10.1021/acsphotonics.9b00433.

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Ding, Yufeng, Chengrong Wei, Huimin Su, Shuoyan Sun, Zhiyong Tang, Zhaona Wang, Guixin Li, et al. "Second Harmonic Generation Covering the Entire Visible Range from a 2D Material–Plasmon Hybrid Metasurface." Advanced Optical Materials 9, no. 16 (May 20, 2021): 2100625. http://dx.doi.org/10.1002/adom.202100625.

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Kang, Evan S. H., Shangzhi Chen, Samim Sardar, Daniel Tordera, Nerijus Armakavicius, Vanya Darakchieva, Timur Shegai, and Magnus P. Jonsson. "Strong Plasmon–Exciton Coupling with Directional Absorption Features in Optically Thin Hybrid Nanohole Metasurfaces." ACS Photonics 5, no. 10 (September 11, 2018): 4046–55. http://dx.doi.org/10.1021/acsphotonics.8b00679.

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45

Yang, Yue, Jining Li, Jie Li, Jin Huang, Qingyan Li, Yating Zhang, Haitao Dai, and Jianquan Yao. "Optical control of terahertz plasmon-induced transparency based on hybrid CsPbBr3 quantum dot metasurfaces." Optics Express 28, no. 16 (July 29, 2020): 24047. http://dx.doi.org/10.1364/oe.399822.

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He, Jin-Na, Jun-Qiao Wang, Pei Ding, Chun-Zhen Fan, Luk R. Arnaut, and Er-Jun Liang. "Optical Switching Based on Polarization Tunable Plasmon-Induced Transparency in Disk/Rod Hybrid Metasurfaces." Plasmonics 10, no. 5 (February 26, 2015): 1115–21. http://dx.doi.org/10.1007/s11468-015-9911-8.

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Siddique, Radwanul Hasan, Shailabh Kumar, Vinayak Narasimhan, Hyounghan Kwon, and Hyuck Choo. "Aluminum Metasurface with Hybrid Multipolar Plasmons for 1000-Fold Broadband Visible Fluorescence Enhancement and Multiplexed Biosensing." ACS Nano 13, no. 12 (November 5, 2019): 13775–83. http://dx.doi.org/10.1021/acsnano.9b02926.

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Ren, Qun, Feng Feng, Xiang Yao, Quan Xu, Ming Xin, Zhihao Lan, Jianwei You, Xiaofei Xiao, and Wei E. I. Sha. "Multiplexing-oriented plasmon-MoS2 hybrid metasurfaces driven by nonlinear quasi bound states in the continuum." Optics Express 29, no. 4 (February 4, 2021): 5384. http://dx.doi.org/10.1364/oe.414730.

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Chong, Ming-Zhe, Jin Zhao, Li-Zheng Yin, Feng-Yuan Han, Chong-Qi Zhang, and Pu-Kun Liu. "Nonlinear modulation of terahertz waves based on a MAPbI3/Gold/Si Hybrid Plasmon-Induced Transparency (PIT) metasurface." Optical Materials 129 (July 2022): 112554. http://dx.doi.org/10.1016/j.optmat.2022.112554.

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Yue, Jin, Songlin Chen, Furi Ling, and Jianquan Yao. "Active manipulation of plasmon-induced transparency based on a BiFeO3/Si hybrid metasurface in the terahertz range." Journal of Alloys and Compounds 853 (February 2021): 157274. http://dx.doi.org/10.1016/j.jallcom.2020.157274.

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