Artykuły w czasopismach: „Plasmonic lattice”

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Spektor, Grisha, Eva Prinz, Michael Hartelt, Anna-Katharina Mahro, Martin Aeschlimann i Meir Orenstein. "Orbital angular momentum multiplication in plasmonic vortex cavities". Science Advances 7, nr 33 (sierpień 2021): eabg5571. http://dx.doi.org/10.1126/sciadv.abg5571.

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Orbital angular momentum of light is a core feature in photonics. Its confinement to surfaces using plasmonics has unlocked many phenomena and potential applications. Here, we introduce the reflection from structural boundaries as a new degree of freedom to generate and control plasmonic orbital angular momentum. We experimentally demonstrate plasmonic vortex cavities, generating a succession of vortex pulses with increasing topological charge as a function of time. We track the spatiotemporal dynamics of these angularly decelerating plasmon pulse train within the cavities for over 300 femtoseconds using time-resolved photoemission electron microscopy, showing that the angular momentum grows by multiples of the chiral order of the cavity. The introduction of this degree of freedom to tame orbital angular momentum delivered by plasmonic vortices could miniaturize pump probe–like quantum initialization schemes, increase the torque exerted by plasmonic tweezers, and potentially achieve vortex lattice cavities with dynamically evolving topology.

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Liu, Jianxi, Weijia Wang, Danqing Wang, Jingtian Hu, Wendu Ding, Richard D. Schaller, George C. Schatz i Teri W. Odom. "Spatially defined molecular emitters coupled to plasmonic nanoparticle arrays". Proceedings of the National Academy of Sciences 116, nr 13 (8.03.2019): 5925–30. http://dx.doi.org/10.1073/pnas.1818902116.

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This paper describes how metal–organic frameworks (MOFs) conformally coated on plasmonic nanoparticle arrays can support exciton–plasmon modes with features resembling strong coupling but that are better understood by a weak coupling model. Thin films of Zn-porphyrin MOFs were assembled by dip coating on arrays of silver nanoparticles (NP@MOF) that sustain surface lattice resonances (SLRs). Coupling of excitons with these lattice plasmons led to an SLR-like mixed mode in both transmission and transient absorption spectra. The spectral position of the mixed mode could be tailored by detuning the SLR in different refractive index environments and by changing the periodicity of the nanoparticle array. Photoluminescence showed mode splitting that can be interpreted as modulation of the exciton line shape by the Fano profile of the surface lattice mode, without requiring Rabi splitting. Compared with pristine Zn-porphyrin, hybrid NP@MOF structures achieved a 16-fold enhancement in emission intensity. Our results establish MOFs as a crystalline molecular emitter material that can couple with plasmonic structures for energy exchange and transfer.

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Sahai, Aakash A., Mark Golkowski, Stephen Gedney, Thomas Katsouleas, Gerard Andonian, Glen White, Joachim Stohr i in. "PetaVolts per meter Plasmonics: introducing extreme nanoscience as a route towards scientific frontiers". Journal of Instrumentation 18, nr 07 (1.07.2023): P07019. http://dx.doi.org/10.1088/1748-0221/18/07/p07019.

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Abstract A new class of plasmons has opened access to unprecedented PetaVolts per meter electromagnetic fields which can transform the paradigm of scientific and technological advances. This includes non-collider searches in fundamental physics in addition to making next generation colliders feasible. PetaVolts per meter plasmonics relies on this new class of plasmons uncovered by our work in the large amplitude limit of collective oscillations of quantum electron gas. This Fermi gas constituted by “free” conduction band electrons is inherent in conductive media endowed with a suitable combination of constituent atoms and ionic lattice structure. As this quantum gas of electrons can be as dense as 1024 cm-3, the coherence limit of plasmonic electromagnetic fields is extended in our model from the classical to the quantum domain, 0.1 √(n 0(1024 cm-3)) PVm-1. Appropriately engineered, structured materials that allow highly tunable material properties also make it possible to overcome disruptive instabilities that dominate the interactions in bulk media. The ultra-high density of conduction electrons and the existence of electronic energy bands engendered by the ionic lattice is only possible due to quantum mechanical effects. Based on this framework, it is critical to address various challenges that underlie PetaVolts per meter plasmonics including stable excitation of plasmons while accounting for their effects on the ionic lattice and the electronic energy band structure over femtosecond timescales. We summarize the challenges and ongoing efforts that set the strategy for the future. Extreme plasmonic fields can shape the future by not only opening the possibility of tens of TeV to multi-PeV center-of-mass-energies but also enabling novel pathways in non-collider HEP. In view of this promise, our efforts are dedicated to realization of the immense potential of PV/m plasmonics and its applications.

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Proctor, Matthew, Paloma A. Huidobro, Stefan A. Maier, Richard V. Craster i Mehul P. Makwana. "Manipulating topological valley modes in plasmonic metasurfaces". Nanophotonics 9, nr 3 (4.02.2020): 657–65. http://dx.doi.org/10.1515/nanoph-2019-0408.

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AbstractCoupled light-matter modes supported by plasmonic metasurfaces can be combined with topological principles to yield subwavelength topological valley states of light. This study gives a systematic presentation of the topological valley states available for lattices of metallic nanoparticles (NPs): all possible lattices with hexagonal symmetry are considered as well as valley states emerging on a square lattice. Several unique effects that have yet to be explored in plasmonics are identified, such as robust guiding, filtering, and splitting of modes, as well as dual-band effects. These are demonstrated by means of scattering computations based on the coupled dipole method that encompass full electromagnetic interactions between NPs.

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Anulytė, Justina, Ernesta Bužavaitė-Vertelienė, Evaldas Stankevičius, Kernius Vilkevičius i Zigmas Balevičius. "High Spectral Sensitivity of Strongly Coupled Hybrid Tamm-Plasmonic Resonances for Biosensing Application". Sensors 22, nr 23 (3.12.2022): 9453. http://dx.doi.org/10.3390/s22239453.

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In this study, the sensitivity to the refractive index changes of the ambient was studied on the uniform gold film (~50 nm) with a 1D photonic crystal (PC) from periodic five TiO2 (~110 nm)/SiO2 (~200 nm) bilayers and gold nano-bumps array produced by direct laser writing on the same sample. The optical signal sensitivity of hybrid plasmonic resonances was compared with traditional surface plasmon resonance (SPR) on a single gold layer. The influence of the strong coupling regime between Tamm plasmon polariton (TPP) and propagated plasmon polaritons in the hybrid plasmonic modes on the sensitivity of the optical was discussed. Recent studies have shown very high hybrid plasmonic mode sensitivity SHSPP ≈ 26,000 nm/RIU to the refractive index on the uniform gold layer; meanwhile, the introduction of gold lattice reduces the signal sensitivity, but increases the Q-factor of the plasmonic resonances. Despite this, the sensitivity to the ellipsometric parameters Ψ and Δ on the gold lattice was rather high due to the increased Q-factor of the resonances. The comparison of plasmonic resonance sensitivity to the refractive index changes of hybrid TPP-SPP mode on the uniform gold layer and traditional SPR have shown that hybrid plasmonic mode, due to a strong coupling effect, overcomes the SPR by about 27%.

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Zhuo, Liqiang, Huiru He, Ruimin Huang, Zhi Li, Weibin Qiu, Fengjiang Zhuang, Shaojian Su, Zhili Lin, Beiju Huang i Qiang Kan. "Flat band of Kagome lattice in graphene plasmonic crystals". Journal of Physics D: Applied Physics 55, nr 6 (2.11.2021): 065106. http://dx.doi.org/10.1088/1361-6463/ac30fe.

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Abstract We propose graphene plasmonic crystals (GPCs) with a Kagome lattice, and investigate the properties of the flat band (FB) in the plasmonic system. By modulating the arrangement of the chemical potentials, a FB is obtained. Furthermore, the authenticity of the FB is confirmed by comparing the band structures and the eigen field distributions obtained from using the tight-binding modeled Hamiltonian with numerical calculations. The proposed Kagome-type GPCs could be of great significance for the study of novel effects in strong interaction systems in the field of plasmonics.

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Fradkin, Ilia M., Andrey A. Demenev, Vladimir D. Kulakovskii, Vladimir N. Antonov i Nikolay A. Gippius. "Plasmonic grating for circularly polarized outcoupling of waveguide-enhanced spontaneous emission". Applied Physics Letters 120, nr 17 (25.04.2022): 171702. http://dx.doi.org/10.1063/5.0085786.

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Plasmonic metasurfaces form a convenient platform for light manipulation at the nanoscale due to their specific localized surface plasmons. Even despite high intrinsic Joule losses, plasmonic nanoparticles are very effective for light manipulation. Here, we show the lattice of plasmonic nanoparticles onto a dielectric waveguide that efficiently couples oppositely propagating guided modes to circularly polarized light beams of different handedness. We demonstrate 80% degree of circular polarization for the out-coupled emission of GaAs-waveguide-embedded quantum dots. The results allow us to consider the lattice as a circular-polarization-controlled grating coupler and make this structure prospective for further implementation as an efficient coupling interface for integrated devices.

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Fradkin, Ilia M., Andrey A. Demenev, Vladimir D. Kulakovskii, Vladimir N. Antonov i Nikolay A. Gippius. "Plasmonic grating for circularly polarized outcoupling of waveguide-enhanced spontaneous emission". Applied Physics Letters 120, nr 17 (25.04.2022): 171702. http://dx.doi.org/10.1063/5.0085786.

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Plasmonic metasurfaces form a convenient platform for light manipulation at the nanoscale due to their specific localized surface plasmons. Even despite high intrinsic Joule losses, plasmonic nanoparticles are very effective for light manipulation. Here, we show the lattice of plasmonic nanoparticles onto a dielectric waveguide that efficiently couples oppositely propagating guided modes to circularly polarized light beams of different handedness. We demonstrate 80% degree of circular polarization for the out-coupled emission of GaAs-waveguide-embedded quantum dots. The results allow us to consider the lattice as a circular-polarization-controlled grating coupler and make this structure prospective for further implementation as an efficient coupling interface for integrated devices.

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Sadeghi, Seyed M., Rithvik R. Gutha i Christina Sharp. "Coherent optical coupling of plasmonic dipoles in metallic nanoislands with random sizes and shapes". Journal of Materials Chemistry C 7, nr 31 (2019): 9678–85. http://dx.doi.org/10.1039/c9tc03351c.

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Kou, Yao, Fangwei Ye i Xianfeng Chen. "Surface plasmonic lattice solitons". Optics Letters 37, nr 18 (11.09.2012): 3822. http://dx.doi.org/10.1364/ol.37.003822.

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Coello, Victor, Mas-ud A. Abdulkareem, Cesar E. Garcia-Ortiz, Citlalli T. Sosa-Sánchez, Ricardo Téllez-Limón i Marycarmen Peña-Gomar. "Plasmonic Coupled Modes in a Metal–Dielectric Periodic Nanostructure". Micromachines 14, nr 9 (31.08.2023): 1713. http://dx.doi.org/10.3390/mi14091713.

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In this study we investigate the optical properties of a 2D-gap surface plasmon metasurface composed of gold nanoblocks (nanoantennas) arranged in a metal–dielectric configuration. This novel structure demonstrates the capability of generating simultaneous multi-plasmonic resonances and offers tunability within the near-infrared domain. Through finite difference time domain (FDTD) simulations, we analyze the metasurface’s reflectance spectra for various lattice periods and identify two distinct dips with near-zero reflectance, indicative of resonant modes. Notably, the broader dip at 1150 nm exhibits consistent behavior across all lattice periodicities, attributed to a Fano-type hybridization mechanism originating from the overlap between localized surface plasmons (LSPs) of metallic nanoblocks and surface plasmon polaritons (SPPs) of the underlying metal layer. Additionally, we investigate the influence of dielectric gap thickness on the gap surface plasmon resonance and observe a blue shift for smaller gaps and a spectral red shift for gaps larger than 100 nm. The dispersion analysis of resonance wavelengths reveals an anticrossing region, indicating the hybridization of localized and propagating modes at wavelengths around 1080 nm with similar periodicities. The simplicity and tunability of our metasurface design hold promise for compact optical platforms based on reflection mode operation. Potential applications include multi-channel biosensors, second-harmonic generation, and multi-wavelength surface-enhanced spectroscopy.

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Kasani, Sujan, Kathrine Curtin i Nianqiang Wu. "A review of 2D and 3D plasmonic nanostructure array patterns: fabrication, light management and sensing applications". Nanophotonics 8, nr 12 (4.10.2019): 2065–89. http://dx.doi.org/10.1515/nanoph-2019-0158.

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AbstractThis review article discusses progress in surface plasmon resonance (SPR) of two-dimensional (2D) and three-dimensional (3D) chip-based nanostructure array patterns. Recent advancements in fabrication techniques for nano-arrays have endowed researchers with tools to explore a material’s plasmonic optical properties. In this review, fabrication techniques including electron-beam lithography, focused-ion lithography, dip-pen lithography, laser interference lithography, nanosphere lithography, nanoimprint lithography, and anodic aluminum oxide (AAO) template-based lithography are introduced and discussed. Nano-arrays have gained increased attention because of their optical property dependency (light-matter interactions) on size, shape, and periodicity. In particular, nano-array architectures can be tailored to produce and tune plasmonic modes such as localized surface plasmon resonance (LSPR), surface plasmon polariton (SPP), extraordinary transmission, surface lattice resonance (SLR), Fano resonance, plasmonic whispering-gallery modes (WGMs), and plasmonic gap mode. Thus, light management (absorption, scattering, transmission, and guided wave propagation), as well as electromagnetic (EM) field enhancement, can be controlled by rational design and fabrication of plasmonic nano-arrays. Because of their optical properties, these plasmonic modes can be utilized for designing plasmonic sensors and surface-enhanced Raman scattering (SERS) sensors.

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Tobing, Landobasa Y. M., Alana M. Soehartono, Aaron D. Mueller, Ken-Tye Yong, Weijun Fan i Dao Hua Zhang. "Hybridized surface lattice modes in intercalated 3-disk plasmonic crystals for high figure-of-merit plasmonic sensing". Nanoscale 13, nr 7 (2021): 4092–102. http://dx.doi.org/10.1039/d0nr07020c.

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Kostyukov, Artem S., Ilia L. Rasskazov, Valeriy S. Gerasimov, Sergey P. Polyutov, Sergey V. Karpov i Alexander E. Ershov. "Multipolar Lattice Resonances in Plasmonic Finite-Size Metasurfaces". Photonics 8, nr 4 (6.04.2021): 109. http://dx.doi.org/10.3390/photonics8040109.

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Collective lattice resonances in regular arrays of plasmonic nanoparticles have attracted much attention due to a large number of applications in optics and photonics. Most of the research in this field is concentrated on the electric dipolar lattice resonances, leaving higher-order multipolar lattice resonances in plasmonic nanostructures relatively unexplored. Just a few works report exceptionally high-Q multipolar lattice resonances in plasmonic arrays, but only with infinite extent (i.e., perfectly periodic). In this work, we comprehensively study multipolar collective lattice resonances both in finite and in infinite arrays of Au and Al plasmonic nanoparticles using a rigorous theoretical treatment. It is shown that multipolar lattice resonances in the relatively large (up to 6400 nanoparticles) finite arrays exhibit broader full width at half maximum (FWHM) compared to similar resonances in the infinite arrays. We argue that our results are of particular importance for the practical implementation of multipolar lattice resonances in different photonics applications.

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Muravitskaya, Alina, Anisha Gokarna, Artur Movsesyan, Sergei Kostcheev, Anna Rumyantseva, Christophe Couteau, Gilles Lerondel, Anne-Laure Baudrion, Sergey Gaponenko i Pierre-Michel Adam. "Refractive index mediated plasmon hybridization in an array of aluminium nanoparticles". Nanoscale 12, nr 11 (2020): 6394–402. http://dx.doi.org/10.1039/c9nr09393a.

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The refractive index of superstrate influences the relative positions of the hybridized plasmonic modes and lattice modes, which results in the manifestation of two peaks in small spectral region beneficial for the plasmon-enhanced fluorescence.

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Shams Mousavi, S. Hamed, Robert Lemasters, Feng Wang, Ali Eshaghian Dorche, Hossein Taheri, Ali A. Eftekhar, Hayk Harutyunyan i Ali Adibi. "Phase-matched nonlinear second-harmonic generation in plasmonic metasurfaces". Nanophotonics 8, nr 4 (7.02.2019): 607–12. http://dx.doi.org/10.1515/nanoph-2018-0181.

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AbstractThe phase matching between the propagating fundamental and nonlinearly generated waves plays an important role in the efficiency of the nonlinear frequency conversion in macroscopic crystals. However, in nanoscale samples, such as nanoplasmonic structures, the phase-matching condition is often ignored due to the sub-wavelength nature of the materials. Here, we first show that the phase matching of the lattice plasmon modes at the fundamental and second-harmonic frequencies in a plasmonic nanoantenna array can effectively enhance the surface-enhanced second-harmonic generation. Additionally, a significant enhancement of the second-harmonic generation is demonstrated using stationary band-edge lattice plasmon modes with zero phase.

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Jandieri, Yasumoto, Pistora i Erni. "Analysis of Scattering by Plasmonic Gratings of Circular Nanorods Using Lattice Sums Technique". Sensors 19, nr 18 (11.09.2019): 3923. http://dx.doi.org/10.3390/s19183923.

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A self-contained formulation for analyzing electromagnetic scattering by a significant class of planar gratings composed of plasmonic nanorods, which were infinite length along their axes, is presented. The procedure for the lattice sums technique was implemented in a cylindrical harmonic expansion method based on the generalized reflection matrix approach for full-wave scattering analysis of plasmonic gratings. The method provided a high computational efficiency and can be considered as one of the best-suited numerical tools for the optimization of plasmonic sensors and plasmonic guiding devices both having a planar geometry. Although the proposed formalism can be applied to analyze a wide class of plasmonic gratings, three configurations were studied in the manuscript. Firstly, a multilayered grating of silver nanocylinders formed analogously to photonic crystals was considered. In the region far from the resonances of a single plasmonic nanocylinder, the structure showed similar properties compared to conventional photonic crystals. When one or a few nanorods were periodically removed from the original crystal, thus forming a crystal with defects, a new band was formed in the spectral responses because of the resonant tunneling through the defect layers. The rigorous formulation of plasmonic gratings with defects was proposed for the first time. Finally, a plasmonic planar grating of metal-coated dielectric nanorods coupled to the dielectric slab was investigated from the viewpoint of design of a refractive index sensor. Dual-absorption bands attributable to the excitation of the localized surface plasmons were studied, and the near field distributions were given in both absorption bands associated with the resonances on the upper and inner surfaces of a single metal-coated nanocylinder. Resonance in the second absorption band was sensitive to the refractive index of the background medium and could be useful for the design of refractive index sensors. Also analyzed was a phase-matching condition between the evanescent space-harmonics of the plasmonic grating and the guided modes inside the slab, leading to a strong coupling.

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Babicheva, Viktoriia E. "Multipole Resonances in Transdimensional Lattices of Plasmonic and Silicon Nanoparticles". MRS Advances 4, nr 11-12 (2019): 713–22. http://dx.doi.org/10.1557/adv.2019.152.

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ABSTRACTTransdimensional photonics has emerged as a new field of science and engineering that explores the optical properties of materials and nanostructures in the translational regime between two and three dimensions. In the present work, we study an example of such transdimensional lattice consisting of nanoparticle array, and we aim at a direct comparison of lattice resonances excited in the periodic lattices of either plasmonic (gold) or silicon nanoparticles of the same size and interparticle spacing. We numerically analyze extinction cross-sections and reflection from the array, and we include electric and magnetic dipoles and electric quadrupoles into consideration. Lattice resonances are excited at the wavelength close to Rayleigh anomaly which is defined by the array periodicity, and different multipoles respond to one or another period of rectangular array depending on incident light polarization. We show that lattice resonances originating from dipole moments are extended to the larger spectral range than electric-quadrupole lattice resonances. Overlap of resonances causes a decrease in reflection (generalized Kerker effect) and, in the case of electric quadrupole and magnetic dipole moments, the coupling of the multipoles is enabled by the lattice.

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Kou, Yao, Fangwei Ye i Xianfeng Chen. "Multiband vector plasmonic lattice solitons". Optics Letters 38, nr 8 (4.04.2013): 1271. http://dx.doi.org/10.1364/ol.38.001271.

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Ye, Fangwei, Dumitru Mihalache, Bambi Hu i Nicolae C. Panoiu. "Subwavelength vortical plasmonic lattice solitons". Optics Letters 36, nr 7 (25.03.2011): 1179. http://dx.doi.org/10.1364/ol.36.001179.

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Kou, Yao, Fangwei Ye i Xianfeng Chen. "Surface plasmonic lattice solitons: errata". Optics Letters 38, nr 3 (16.01.2013): 253. http://dx.doi.org/10.1364/ol.38.000253.

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Dong, Shaohua, Qing Zhang, Guangtao Cao, Jincheng Ni, Ting Shi, Shiqing Li, Jingwen Duan i in. "On-chip trans-dimensional plasmonic router". Nanophotonics 9, nr 10 (23.04.2020): 3357–65. http://dx.doi.org/10.1515/nanoph-2020-0078.

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AbstractPlasmons, as emerging optical diffraction-unlimited information carriers, promise the high-capacity, high-speed, and integrated photonic chips. The on-chip precise manipulations of plasmon in an arbitrary platform, whether two-dimensional (2D) or one-dimensional (1D), appears demanding but non-trivial. Here, we proposed a meta-wall, consisting of specifically designed meta-atoms, that allows the high-efficiency transformation of propagating plasmon polaritons from 2D platforms to 1D plasmonic waveguides, forming the trans-dimensional plasmonic routers. The mechanism to compensate the momentum transformation in the router can be traced via a local dynamic phase gradient of the meta-atom and reciprocal lattice vector. To demonstrate such a scheme, a directional router based on phase-gradient meta-wall is designed to couple 2D SPP to a 1D plasmonic waveguide, while a unidirectional router based on grating metawall is designed to route 2D SPP to the arbitrarily desired direction along the 1D plasmonic waveguide by changing the incident angle of 2D SPP. The on-chip routers of trans-dimensional SPP demonstrated here provide a flexible tool to manipulate propagation of surface plasmon polaritons (SPPs) and may pave the way for designing integrated plasmonic network and devices.

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Honari-Latifpour, Mostafa, i Leila Yousefi. "Topological plasmonic edge states in a planar array of metallic nanoparticles". Nanophotonics 8, nr 5 (14.03.2019): 799–806. http://dx.doi.org/10.1515/nanoph-2018-0230.

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AbstractPhotonic topological insulators (PTIs) are electromagnetic structures with highly robust unidirectional edge states, originating from their nontrivial bulk band topology. Here, we propose a plasmonic PTI that supports highly confined one-way edge states capable of transporting deep subwavelength optical frequency plasmons through arbitrary paths without back-scattering. The structure consists of a simple planar array of coupled plasmonic nanoparticles arranged in a perturbed honeycomb lattice that exhibits nontrivial band topology. The operation frequency of the emergent edge states is shown to be independent of the lattice constant, allowing for the miniaturization of the structure. As a high-frequency PTI with a simple and planar design, this structure is compatible with well-established integrated nanofabrication technologies and may find application in planar, compact, and topologically robust integrated nanophotonic devices.

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Liu, Wenjing, Bumsu Lee, Carl H. Naylor, Ho-Seok Ee, Joohee Park, A. T. Charlie Johnson i Ritesh Agarwal. "Strong Exciton–Plasmon Coupling in MoS2 Coupled with Plasmonic Lattice". Nano Letters 16, nr 2 (25.01.2016): 1262–69. http://dx.doi.org/10.1021/acs.nanolett.5b04588.

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Ross, Michael B., Jessie C. Ku, Martin G. Blaber, Chad A. Mirkin i George C. Schatz. "Defect tolerance and the effect of structural inhomogeneity in plasmonic DNA-nanoparticle superlattices". Proceedings of the National Academy of Sciences 112, nr 33 (3.08.2015): 10292–97. http://dx.doi.org/10.1073/pnas.1513058112.

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Bottom-up assemblies of plasmonic nanoparticles exhibit unique optical effects such as tunable reflection, optical cavity modes, and tunable photonic resonances. Here, we compare detailed simulations with experiment to explore the effect of structural inhomogeneity on the optical response in DNA-gold nanoparticle superlattices. In particular, we explore the effect of background environment, nanoparticle polydispersity (>10%), and variation in nanoparticle placement (∼5%). At volume fractions less than 20% Au, the optical response is insensitive to particle size, defects, and inhomogeneity in the superlattice. At elevated volume fractions (20% and 25%), structures incorporating different sized nanoparticles (10-, 20-, and 40-nm diameter) each exhibit distinct far-field extinction and near-field properties. These optical properties are most pronounced in lattices with larger particles, which at fixed volume fraction have greater plasmonic coupling than those with smaller particles. Moreover, the incorporation of experimentally informed inhomogeneity leads to variation in far-field extinction and inconsistent electric-field intensities throughout the lattice, demonstrating that volume fraction is not sufficient to describe the optical properties of such structures. These data have important implications for understanding the role of particle and lattice inhomogeneity in determining the properties of plasmonic nanoparticle lattices with deliberately designed optical properties.

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Acunzo, Adriano, Emanuela Scardapane, Maria De Luca, Daniele Marra, Raffaele Velotta i Antonio Minopoli. "Plasmonic Nanomaterials for Colorimetric Biosensing: A Review". Chemosensors 10, nr 4 (5.04.2022): 136. http://dx.doi.org/10.3390/chemosensors10040136.

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In the last few decades, plasmonic colorimetric biosensors raised increasing interest in bioanalytics thanks to their cost-effectiveness, responsiveness, and simplicity as compared to conventional laboratory techniques. Potential high-throughput screening and easy-to-use assay procedures make them also suitable for realizing point of care devices. Nevertheless, several challenges such as fabrication complexity, laborious biofunctionalization, and poor sensitivity compromise their technological transfer from research laboratories to industry and, hence, still hamper their adoption on large-scale. However, newly-developing plasmonic colorimetric biosensors boast impressive sensing performance in terms of sensitivity, dynamic range, limit of detection, reliability, and specificity thereby continuously encouraging further researches. In this review, recently reported plasmonic colorimetric biosensors are discussed with a focus on the following categories: (i) on-platform-based (localized surface plasmon resonance, coupled plasmon resonance and surface lattice resonance); (ii) colloid aggregation-based (label-based and label free); (iii) colloid non-aggregation-based (nanozyme, etching-based and growth-based).

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Yang, Ankun, Alexander J. Hryn, Marc R. Bourgeois, Won-Kyu Lee, Jingtian Hu, George C. Schatz i Teri W. Odom. "Programmable and reversible plasmon mode engineering". Proceedings of the National Academy of Sciences 113, nr 50 (28.11.2016): 14201–6. http://dx.doi.org/10.1073/pnas.1615281113.

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Plasmonic nanostructures with enhanced localized optical fields as well as narrow linewidths have driven advances in numerous applications. However, the active engineering of ultranarrow resonances across the visible regime—and within a single system—has not yet been demonstrated. This paper describes how aluminum nanoparticle arrays embedded in an elastomeric slab may exhibit high-quality resonances with linewidths as narrow as 3 nm at wavelengths not accessible by conventional plasmonic materials. We exploited stretching to improve and tune simultaneously the optical response of as-fabricated nanoparticle arrays by shifting the diffraction mode relative to single-particle dipolar or quadrupolar resonances. This dynamic modulation of particle–particle spacing enabled either dipolar or quadrupolar lattice modes to be selectively accessed and individually optimized. Programmable plasmon modes offer a robust way to achieve real-time tunable materials for plasmon-enhanced molecular sensing and plasmonic nanolasers and opens new possibilities for integrating with flexible electronics.

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Liu, Shao-Ding, Jun-Yan Liu, Zhaolong Cao, Jin-Li Fan i Dangyuan Lei. "Dynamic tuning of enhanced intrinsic circular dichroism in plasmonic stereo-metamolecule array with surface lattice resonance". Nanophotonics 9, nr 10 (14.05.2020): 3419–34. http://dx.doi.org/10.1515/nanoph-2020-0130.

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AbstractEnhancing the circular dichroism signals of chiral plasmonic nanostructures is vital for realizing miniaturized functional chiroptical devices, such as ultrathin wave plates and high-performance chiral biosensors. Rationally assembling individual plasmonic metamolecules into coupled nanoclusters or periodic arrays provides an extra degree of freedom to effectively manipulate and leverage the intrinsic circular dichroism of the constituent structures. Here, we show that sophisticated manipulation over the geometric parameters of a plasmonic stereo-metamolecule array enables selective excitation of its surface lattice resonance mode either by left- or right-handed circularly polarized incidence through diffraction coupling, which can significantly amplify the differential absorption and hence the intrinsic circular dichroism. In particular, since the diffraction coupling requires no index-matching condition and its handedness can be switched by manipulating the refractive index of either the superstrate or the substrate, it is therefore possible to achieve dynamic tuning and active control of the intrinsic circular dichroism response without the need of modifying structure parameters. Our proposed system provides a versatile platform for ultrasensitive chiral plasmonics biosensing and light field manipulation.

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Sun, Lin, Haixin Lin, Kevin L. Kohlstedt, George C. Schatz i Chad A. Mirkin. "Design principles for photonic crystals based on plasmonic nanoparticle superlattices". Proceedings of the National Academy of Sciences 115, nr 28 (25.06.2018): 7242–47. http://dx.doi.org/10.1073/pnas.1800106115.

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Photonic crystals have been widely studied due to their broad technological applications in lasers, sensors, optical telecommunications, and display devices. Typically, photonic crystals are periodic structures of touching dielectric materials with alternating high and low refractive indices, and to date, the variables of interest have focused primarily on crystal symmetry and the refractive indices of the constituent materials, primarily polymers and semiconductors. In contrast, finite difference time domain (FDTD) simulations suggest that plasmonic nanoparticle superlattices with spacer groups offer an alternative route to photonic crystals due to the controllable spacing of the nanoparticles and the high refractive index of the lattices, even far away from the plasmon frequency where losses are low. Herein, the stopband features of 13 Bravais lattices are characterized and compared, resulting in paradigm-shifting design principles for photonic crystals. Based on these design rules, a simple cubic structure with an ∼130-nm lattice parameter is predicted to have a broad photonic stopband, a property confirmed by synthesizing the structure via DNA programmable assembly and characterizing it by reflectance measurements. We show through simulation that a maximum reflectance of more than 0.99 can be achieved in these plasmonic photonic crystals by optimizing the nanoparticle composition and structural parameters.

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30

Chen, Yuan Hao, Gui Qiang Liu, Xiang Nan Zhang i Kuan Huang. "Optical Transparent Behaviors of Double Plasmonic Arrays Sandwiched with a Metal Film". Advanced Materials Research 760-762 (wrzesień 2013): 697–700. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.697.

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We propose a high tunable plasmon-induced transparency metal film structure which can be performed by double two-dimensional hexagonal lattice array of plasmonic nanoparticles inserted with a continuous metal film. The structure shows metal transparency in the optical regime. The transparency response in this structure can be efficiently modified by varying the thickness of the metal film, the size of nanoparticles, and the position of the nanoparticles. The structure proposed here may provide a new alternative approach to obtain transparent and highly conducting metal structures with potential applications in optoelectronic integrated circuits, plasmonic filters and transparent conductors.

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31

Ghosh, Atreyie, Sena Yang, Yanan Dai, Zhikang Zhou, Tianyi Wang, Chen-Bin Huang i Hrvoje Petek. "A topological lattice of plasmonic merons". Applied Physics Reviews 8, nr 4 (grudzień 2021): 041413. http://dx.doi.org/10.1063/5.0062133.

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32

Bourgeois, Marc R., Andrew W. Rossi, Matthieu Chalifour, Charles Cherqui i David J. Masiello. "Lattice Kerker Effect with Plasmonic Oligomers". Journal of Physical Chemistry C 125, nr 34 (19.08.2021): 18817–26. http://dx.doi.org/10.1021/acs.jpcc.1c05024.

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33

Schokker, A. Hinke, i A. Femius Koenderink. "Statistics of Randomized Plasmonic Lattice Lasers". ACS Photonics 2, nr 9 (2.09.2015): 1289–97. http://dx.doi.org/10.1021/acsphotonics.5b00226.

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34

Gutha, Rithvik R., Seyed M. Sadeghi, Christina Sharp i Waylin J. Wing. "Multiplexed infrared plasmonic surface lattice resonances". Journal of Physics D: Applied Physics 51, nr 4 (10.01.2018): 045305. http://dx.doi.org/10.1088/1361-6463/aaa0ba.

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35

Gbur, Greg, i Matt Smith. "Controlled Coherence Plasmonic Light Sources". Photonics 8, nr 7 (8.07.2021): 268. http://dx.doi.org/10.3390/photonics8070268.

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Through a computational model, we study the coherence converting capabilities of an array of holes in a surface plasmon-supporting metal plate, with an eye towards the creation of controlled coherence plasmonic light sources. We evaluate how the average coherence and transmission of the hole array depends on the parameters of the array, such as the array geometry, lattice constant, and hole size. We show that the location of coherence bandgaps and resonances can be estimated through a simple formula and that increases in coherence are strongly correlated with increases in transmission.

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36

Mennucci, Carlo, Debasree Chowdhury, Giacomo Manzato, Matteo Barelli, Roberto Chittofrati, Christian Martella i Francesco Buatier de Mongeot. "Large-area flexible nanostripe electrodes featuring plasmon hybridization engineering". Nano Research 14, nr 3 (21.10.2020): 858–67. http://dx.doi.org/10.1007/s12274-020-3125-x.

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AbstractMultifunctional flexible Au electrodes based on one-dimensional (1D) arrays of plasmonic gratings are nanofabricated over large areas with an engineered variant of laser interference lithography optimized for low-cost transparent templates. Au nanostripe (NS) arrays achieve sheet resistance in the order of 20 Ohm/square on large areas (∼ cm2) and are characterized by a strong and dichroic plasmonic response which can be easily tuned across the visible (VIS) to near-infrared (NIR) spectral range by tailoring their cross-sectional morphology. Stacking vertically a second nanostripe, separated by a nanometer scale dielectric gap, we form near-field coupled Au/SiO2/Au dimers which feature hybridization of their localized plasmon resonances, strong local field-enhancements and a redshift of the resonance towards the NIR range. The possibility to combine excellent transport properties and optical transparency on the same plasmonic metasurface template is appealing in applications where low-energy photon management is mandatory like e.g., in plasmon enhanced spectroscopies or in photon harvesting for ultrathin photovoltaic devices. The remarkable lateral order of the plasmonic NS gratings provides an additional degree of freedom for tailoring the optical response of the multifunctional electrodes via the excitation of surface lattice resonances, a Fano-like coupling between the broad localised plasmonic resonances and the collective sharp Rayleigh modes.

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37

Han, Aoxue, Colm Dineen, Viktoriia E. Babicheva i Jerome V. Moloney. "Second harmonic generation in metasurfaces with multipole resonant coupling". Nanophotonics 9, nr 11 (5.07.2020): 3545–56. http://dx.doi.org/10.1515/nanoph-2020-0193.

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AbstractWe report on the numerical demonstration of enhanced second harmonic generation (SHG) originating from collective resonances in plasmonic nanoparticle arrays. The nonlinear optical response of the metal nanoparticles is modeled by employing a hydrodynamic nonlinear Drude model implemented into Finite-Difference Time-Domain (FDTD) simulations, and effective polarizabilities of nanoparticle multipoles in the lattice are analytically calculated at the fundamental wavelength by using a coupled dipole–quadrupole approximation. Excitation of narrow collective resonances in nanoparticle arrays with electric quadrupole (EQ) and magnetic dipole (MD) resonant coupling leads to strong linear resonance enhancement. In this work, we analyze SHG in the vicinity of the lattice resonance corresponding to different nanoparticle multipoles and explore SHG efficiency by varying the lattice periods. Coupling of electric quadrupole and magnetic dipole in the nanoparticle lattice indicates symmetry breaking and the possibility of enhanced SHG under these conditions. By varying the structure parameters, we can change the strength of electric dipole (ED), EQ, and MD polarizabilities, which can be used to control the linewidth and magnitude of SHG emission in plasmonic lattices. Engineering of lattice resonances and associated magnetic dipole resonant excitations can be used for spectrally narrow nonlinear response as the SHG can be enhanced and controlled by higher multipole excitations and their lattice resonances. We show that both ED and EQ–MD lattice coupling contribute to SHG, but the presence of strong EQ–MD coupling is important for spectrally narrow SHG and, in our structure, excitation of narrow higher-order multipole lattice resonances results in five times enhancement.

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38

Khurgin, Jacob B. "Relative merits of phononics vs. plasmonics: the energy balance approach". Nanophotonics 7, nr 1 (1.01.2018): 305–16. http://dx.doi.org/10.1515/nanoph-2017-0048.

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AbstractThe common feature of various plasmonic schemes is their ability to confine optical fields of surface plasmon polaritons (SPPs) into subwavelength volumes and thus achieve a large enhancement of linear and nonlinear optical properties. This ability, however, is severely limited by the large ohmic loss inherent to even the best of metals. However, in the mid- and far-infrared ranges of the spectrum, there exists a viable alternative to metals – polar dielectrics and semiconductors, in which dielectric permittivity (the real part) turns negative in the Reststrahlen region. This feature engenders the so-called surface phonon polaritons, capable of confining the field in a way akin to their plasmonic analogs, the SPPs. Since the damping rate of polar phonons is substantially less than that of free electrons, it is not unreasonable to expect that phononic devices may outperform their plasmonic counterparts. Yet a more rigorous analysis of the comparative merits of phononics and plasmonics reveals a more nuanced answer, namely, that while phononic schemes do exhibit narrower resonances and can achieve a very high degree of energy concentration, most of the energy is contained in the form of lattice vibrations so that enhancement of the electric field and, hence, the Purcell factor is rather small compared to what can be achieved with metal nanoantennas. Still, the sheer narrowness of phononic resonances is expected to make phononics viable in applications where frequency selectivity is important.

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39

Volk, Kirsten, Tobias Honold, Déborah Feller i Matthias Karg. "Surface Lattice Resonances in Self‐Templated Plasmonic Honeycomb and Moiré Lattices". Advanced Materials Interfaces 8, nr 13 (14.06.2021): 2100317. http://dx.doi.org/10.1002/admi.202100317.

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40

Hakala, Tommi K., Antti J. Moilanen, Aaro I. Väkeväinen, Rui Guo, Jani-Petri Martikainen, Konstantinos S. Daskalakis, Heikki T. Rekola, Aleksi Julku i Päivi Törmä. "Bose–Einstein condensation in a plasmonic lattice". Nature Physics 14, nr 7 (16.04.2018): 739–44. http://dx.doi.org/10.1038/s41567-018-0109-9.

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41

Cherqui, Charles, Marc R. Bourgeois, Danqing Wang i George C. Schatz. "Plasmonic Surface Lattice Resonances: Theory and Computation". Accounts of Chemical Research 52, nr 9 (29.08.2019): 2548–58. http://dx.doi.org/10.1021/acs.accounts.9b00312.

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42

Hu, Jingtian, Chang-Hua Liu, Xiaochen Ren, Lincoln J. Lauhon i Teri W. Odom. "Plasmonic Lattice Lenses for Multiwavelength Achromatic Focusing". ACS Nano 10, nr 11 (27.10.2016): 10275–82. http://dx.doi.org/10.1021/acsnano.6b05855.

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43

Shi, Yunjie, Wei Liu, Shidi Liu, Tianyu Yang, Yuming Dong, Degui Sun i Guangyuan Li. "Strong Coupling between Plasmonic Surface Lattice Resonance and Photonic Microcavity Modes". Photonics 9, nr 2 (1.02.2022): 84. http://dx.doi.org/10.3390/photonics9020084.

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We report the strong coupling between plasmonic surface lattice resonances (SLRs) and photonic Fabry-Pérot (F-P) resonances in a microcavity embedded with two-dimensional periodic array of metal-insulator-metal nanopillars. For such a plasmonic-photonic system, we show that the SLR can be strongly coupled to the F-P resonances of both the odd- and even orders, and that the splitting energy reaches as high as 153 meV in the visible regime. Taking advantage of the strong coupling, the resulted high-energy upper polariton has similar characteristics as the plasmonic SLR, but the quality factor is almost twice of that of the SLR. We expect that this work will provide a new scheme for strong coupling between plasmonic and photonic modes, and will point to a new direction to improve the quality factor of SLRs.

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44

Saad Bin-Alam, M., Orad Reshef, Raja Naeem Ahmad, Jeremy Upham, Mikko J. Huttunen, Ksenia Dolgaleva i Robert W. Boyd. "Cross-polarized surface lattice resonances in a rectangular lattice plasmonic metasurface". Optics Letters 47, nr 8 (14.04.2022): 2105. http://dx.doi.org/10.1364/ol.448813.

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45

Li, Chunyan, Ran Cui, Fangwei Ye, Yaroslav V. Kartashov, Lluis Torner i Xianfeng Chen. "Self-deflecting plasmonic lattice solitons and surface modes in chirped plasmonic arrays". Optics Letters 40, nr 6 (4.03.2015): 898. http://dx.doi.org/10.1364/ol.40.000898.

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46

Huttunen, Mikko J., Robert Czaplicki i Martti Kauranen. "Nonlinear plasmonic metasurfaces". Journal of Nonlinear Optical Physics & Materials 28, nr 01 (marzec 2019): 1950001. http://dx.doi.org/10.1142/s0218863519500012.

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Nonlinear plasmonic metasurfaces have recently attracted considerable interest, due to their potential for enabling nanoscale nonlinear optics. Here, we review the current progress in this topic while paying special attention to existing challenges. In order to limit our scope, we concentrate on nonlinear metasurfaces utilizing inter-particle and lattice effects and focus on metasurfaces operating close to visible and near-infrared frequencies. We will also critically discuss the short and longer term prospects of nonlinear metasurfaces to start rivaling traditional nonlinear materials in applications.

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47

Park, Daniel J., Chuan Zhang, Jessie C. Ku, Yu Zhou, George C. Schatz i Chad A. Mirkin. "Plasmonic photonic crystals realized through DNA-programmable assembly". Proceedings of the National Academy of Sciences 112, nr 4 (29.12.2014): 977–81. http://dx.doi.org/10.1073/pnas.1422649112.

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Three-dimensional dielectric photonic crystals have well-established enhanced light–matter interactions via high Q factors. Their plasmonic counterparts based on arrays of nanoparticles, however, have not been experimentally well explored owing to a lack of available synthetic routes for preparing them. However, such structures should facilitate these interactions based on the small mode volumes associated with plasmonic polarization. Herein we report strong light-plasmon interactions within 3D plasmonic photonic crystals that have lattice constants and nanoparticle diameters that can be independently controlled in the deep subwavelength size regime by using a DNA-programmable assembly technique. The strong coupling within such crystals is probed with backscattering spectra, and the mode splitting (0.10 and 0.24 eV) is defined based on dispersion diagrams. Numerical simulations predict that the crystal photonic modes (Fabry–Perot modes) can be enhanced by coating the crystals with a silver layer, achieving moderate Q factors (∼102) over the visible and near-infrared spectrum.

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48

Wang, Jianfeng, Xuelei Sui, Wenhui Duan, Feng Liu i Bing Huang. "Density-independent plasmons for terahertz-stable topological metamaterials". Proceedings of the National Academy of Sciences 118, nr 19 (5.05.2021): e2023029118. http://dx.doi.org/10.1073/pnas.2023029118.

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To efficiently integrate cutting-edge terahertz technology into compact devices, the highly confined terahertz plasmons are attracting intensive attention. Compared to plasmons at visible frequencies in metals, terahertz plasmons, typically in lightly doped semiconductors or graphene, are sensitive to carrier density (n) and thus have an easy tunability, which leads to unstable or imprecise terahertz spectra. By deriving a simplified but universal form of plasmon frequencies, here, we reveal a unified mechanism for generating unusual n-independent plasmons (DIPs) in all topological states with different dimensions. Remarkably, we predict that terahertz DIPs can be excited in a two-dimensional nodal line and one-dimensional nodal point systems, confirmed by the first-principle calculations on almost all existing topological semimetals with diverse lattice symmetries. Besides n-independence, the feature of Fermi velocity and degeneracy factor dependencies in DIPs can be applied to design topological superlattice and multiwalled carbon nanotube metamaterials for broadband terahertz spectroscopy and quantized terahertz plasmons, respectively. Surprisingly, high spatial confinement and quality factor, also insensitive to n, can be simultaneously achieved in these terahertz DIPs. Our findings pave the way for developing topological plasmonic devices for stable terahertz applications.

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Diroll, Benjamin T., Matthew S. Kirschner, Peijun Guo i Richard D. Schaller. "Optical and Physical Probing of Thermal Processes in Semiconductor and Plasmonic Nanocrystals". Annual Review of Physical Chemistry 70, nr 1 (14.06.2019): 353–77. http://dx.doi.org/10.1146/annurev-physchem-042018-052639.

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This article reviews thermal properties of semiconductor and emergent plasmonic nanomaterials, focusing on mechanisms through which hot carriers and phonons are produced and dissipated as well as the related impacts on optoelectronic properties. Elevated equilibrium temperatures, of particular relevance for implementation of nanomaterials in devices, affect absorptive and radiative transitions as well as emission efficiency that can present reversible and irreversible changes with temperature. In noble metal or doped semiconductor/insulator nanomaterials, hot carriers and lattice heating can substantially influence localized surface plasmon resonances and yield large ultrafast changes in transmission or strongly oscillatory coherences. Transient optical and diffraction characterizations enable nonequilibrium investigations of phonon dynamics and cooling such as lattice expansion and crystal phase stability. Timescales of nanoparticle thermalization with surroundings and transport of heat within films of such materials are also discussed.

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50

Lin, Linhan, i Yuebing Zheng. "Substrate-Independent Lattice Plasmon Modes for High-Performance On-Chip Plasmonic Sensors". Plasmonics 11, nr 6 (11.04.2016): 1427–35. http://dx.doi.org/10.1007/s11468-016-0193-6.

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