Journal articles: 'Guided mode resonance grating filters'

1

Liu, Wenxing, Zhenquan Lai, Hao Guo, and Ying Liu. "Guided-mode resonance filters with shallow grating." Optics Letters 35, no. 6 (March 15, 2010): 865. http://dx.doi.org/10.1364/ol.35.000865.

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2

Bao, G., and K. Huang. "Optimal Design of Guided-Mode Grating Resonance Filters." IEEE Photonics Technology Letters 16, no. 1 (January 2004): 141–43. http://dx.doi.org/10.1109/lpt.2003.818927.

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3

Meudt, Maik, Andreas Henkel, Maximilian Buchmüller, and Patrick Görrn. "A Theoretical Description of Node-Aligned Resonant Waveguide Gratings." Optics 3, no. 1 (March 4, 2022): 60–69. http://dx.doi.org/10.3390/opt3010008.

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Waveguide gratings are used for applications such as guided-mode resonance filters and fiber-to-chip couplers. A waveguide grating typically consists of a stack of a single-mode slab waveguide and a grating. The filling factor of the grating with respect to the mode intensity profile can be altered via changing the waveguide’s refractive index. As a result, the propagation length of the mode is slightly sensitive to refractive index changes. Here, we theoretically investigate whether this sensitivity can be increased by using alternative waveguide grating geometries. Using rigorous coupled-wave analysis (RCWA), the filling factors of the modes of waveguide gratings supporting more than one mode are simulated. It is observed that both long propagation lengths and large sensitivities with respect to refractive index changes can be achieved by using the intensity nodes of higher-order modes.

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4

Szeghalmi, Adriana, Michael Helgert, Robert Brunner, Frank Heyroth, Ulrich Gösele, and Mato Knez. "Tunable Guided-Mode Resonance Grating Filter." Advanced Functional Materials 20, no. 13 (May 25, 2010): 2053–62. http://dx.doi.org/10.1002/adfm.200902044.

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5

Yu, W., D. Wu, X. Duan, and Y. Yi. "Subwavelength Grating Structure with High Aspect Ratio and Tapered Sidewall Profiles." MRS Advances 1, no. 23 (December 28, 2015): 1693–701. http://dx.doi.org/10.1557/adv.2015.32.

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ABSTRACTCMOS-compatible fabrication and etching processes are often used in subwavelength grating structures manufacturing, it normally generates tapered sidewall profile of the gratings. In this work, we have studied the impacts on resonance mode characteristics of subwavelength grating structures due to the tapered sidewall profile, as well as grating with high aspect ratio. Our simulation results have revealed that both of these two factors play important roles on the resonance mode behavior of subwavelength grating devices. We also discussed the mechanism between the guided mode resonance and the grating cavity mode resonance. Our study will provide guidance for a series of integrated photonics devices applications, such as compact optical filter, photonics amplifier, and lasers, while the realistic subwavelength grating structure is considered.

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6

Kuo, Wen-Kai, and Che-Jung Hsu. "Two-dimensional grating guided-mode resonance tunable filter." Optics Express 25, no. 24 (November 13, 2017): 29642. http://dx.doi.org/10.1364/oe.25.029642.

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7

Kanamori, Yoshiaki, Daisuke Ema, and Kazuhiro Hane. "Miniature Spectroscopes with Two-Dimensional Guided-Mode Resonant Metal Grating Filters Integrated on a Photodiode Array." Materials 11, no. 10 (October 10, 2018): 1924. http://dx.doi.org/10.3390/ma11101924.

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A small spectroscope with 25 color sensors was fabricated by combining metamaterial color filters and Si photodiodes. The metamaterial color filters consisted of guided-mode resonant metal gratings with subwavelength two-dimensional periodic structures. Transmittance characteristics of the color filters were designed to obtain peak wavelengths proportional to grating periods. For each color sensor, a peak wavelength of the spectral sensitivity could be tuned in the range of visible wavelengths by adjusting each grating period. By performing spectrum reconstruction using Tikhonov regularization, the spectrum of an incident light was obtained from the signal of photodiodes. Several monochromatic lights were made incident on the fabricated device and the spectral characteristics of the incident light were reconstructed from the output signals obtained from the respective color sensors. The peak wavelengths of the reconstructed spectra were in good agreement with the center wavelengths of the monochromatic lights.

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8

Ren, Zhibin, Yahui Sun, Shuqing Zhang, Zihao Lin, and Chunyu Wang. "Tunable narrow band perfect metamaterial absorber based on guided-mode resonance." Modern Physics Letters B 33, no. 16 (June 6, 2019): 1950171. http://dx.doi.org/10.1142/s0217984919501719.

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The tunable narrow band perfect metamaterial absorber (PMA) based on guided-mode resonance (GMR) for the visible spectral region is proposed. The PMA is composed of a one-dimensional grating layer, two waveguide layers and an Ag substrate. Tunable narrow band PMAs are designed using rigorous coupled-wave analysis by comparing the GMR effects for the filters and absorbers. Afterwards, two tunable PMA samples are fabricated through thin-film deposition and ultraviolet lithographic patterning. Finally, the reflection spectra of the fabricated PMA samples are measured. The absorption spectra obtained by subtracting the measured reflection spectra from 1 are consistent with the theory.

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9

Luo, Shida, Lin Chen, Yinqi Bao, Ning Yang, and Yiming Zhu. "Non-polarizing guided-mode resonance grating filter for telecommunications." Optik 124, no. 21 (November 2013): 5158–60. http://dx.doi.org/10.1016/j.ijleo.2013.03.095.

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10

Mousa, Mohamed A., Nadia H. Rafat, and Amr A. E. Saleh. "Toward spectrometerless instant Raman identification with tailored metasurfaces-powered guided-mode resonances (GMR) filters." Nanophotonics 10, no. 18 (October 20, 2021): 4567–77. http://dx.doi.org/10.1515/nanoph-2021-0444.

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Abstract Raman identification is an instrumental tool with a broad range of applications, yet current spectroscopy approaches fall short in facilitating practical and scalable Raman identification platforms. In this work, we introduce a spectrometerless Raman identification approach that utilizes guided-mode resonance filters. Unlike arrayed narrowband-filters spectrometer, we tailor the transmission characteristics of each filter to match the Raman signature of a given target. Hence, instantaneous Raman identification could be directly achieved at the hardware level with no spectral data post-processing. The filters consist of a metasurface grating encapsulated between two identical distributed Bragg reflectors and are characterized by transmission peaks line-widths narrower than 0.01 nm and transmission efficiency exceeding 98%. We develop a rigorous design methodology to customize the filters’ characteristics such that the maximum optical transmission through a given filter is only attained when exposed to the Raman scattering from its matched target. To illustrate the potential of our approach, we theoretically investigate the identification of four different saccharides as well as the classification of two antibiotic-susceptible and resistant strains of Staphylococcus aureus. We show that our proposed approach can accurately identify these targets. Our work lays the foundation for a new-generation of scalable, compact, and cost-effective instant Raman identification platforms that can be adopted in countless applications from wearables and point-of-care diagnostics to in-line quality control in food and pharmaceutical industries.

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11

Kintaka, Kenji, Kosuke Asai, Katsuaki Yamada, Junichi Inoue, and Shogo Ura. "Grating-Position-Shifted Cavity-Resonator- Integrated Guided-Mode Resonance Filter." IEEE Photonics Technology Letters 29, no. 2 (January 15, 2017): 201–4. http://dx.doi.org/10.1109/lpt.2016.2636229.

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12

Wu, Yonggang, Zihuan Xia, Zhenhua Wang, Renchen Liu, Pinglin Tang, Gang Lv, and Heyun Wu. "Nonpolarizing and tunable perpendicular dual-grating guided-mode resonance filter." Optics Communications 285, no. 12 (June 2012): 2840–45. http://dx.doi.org/10.1016/j.optcom.2012.02.038.

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13

Golovastikov, Nikita V., Dmitry A. Bykov, Evgeni A. Bezus, and Leonid L. Doskolovich. "Lines of Quasi-BICs and Butterworth Line Shape in Stacked Resonant Gratings: Analytical Description." Photonics 10, no. 4 (March 24, 2023): 363. http://dx.doi.org/10.3390/photonics10040363.

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We propose analytical approximations of the reflection and transmission spectra of a stacked dielectric diffraction grating consisting of two identical resonant guided-mode gratings with a Lorentzian line shape. These approximations, derived using the scattering matrix formalism, are functions of both angular frequency ω and the tangential wave vector component kx of the incident wave. We analytically demonstrate and, using full-wave simulations with rigorous coupled-wave analysis technique, numerically confirm that by a proper choice of the thickness of the dielectric layer separating the gratings, one can tailor the resonant optical properties of the stacked structure. In particular, it is possible to obtain lines of quasi-bound states in the continuum in the ω–kx parameter space with the quality factor decaying proportionally to kx−4 or kx−6. In addition, the stacked structure can be used as a spectral or spatial Butterworth filter operating in reflection. The presented results may find application in the design of optical filters and sensors based on stacked resonant gratings.

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14

Liao, Yan-Lin, Yan Zhao, Xingfang Zhang, Wen Zhang, and Zhongzhu Wang. "Spatially and spectrally resolved ultra-narrowband TE-polarization absorber based on the guide-mode resonance." Modern Physics Letters B 31, no. 24 (August 29, 2017): 1750223. http://dx.doi.org/10.1142/s0217984917502232.

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A spatially and spectrally resolved ultra-narrowband absorber with a dielectric grating and metal substrate has been reported. The absorber shows that the absorption rate is more than 0.99 with the absorption bandwidth less than 1.5 nm at normal incidence for TE polarization (electric field is parallel to grating grooves). The angular width of the absorption is about 0.27[Formula: see text]. The wavelength-angle sensitivity and absorption-angle sensitivity are 13.4 nm per degree and 296.3% per degree, respectively. The simulation results also show the spatially and spectrally resolved ultra-narrowband absorption is originated from the guide-mode resonance. In addition, the wavelength-angle sensitivity can be improved by enlarging the grating period according to the guide-mode resonance mechanism. The proposed absorber has potential applications in optical filters, angle measurement and thermal emitters.

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15

Bark, Hyeon Sang, and Tae-In Jeon. "Tunable terahertz guided-mode resonance filter with a variable grating period." Optics Express 26, no. 22 (October 25, 2018): 29353. http://dx.doi.org/10.1364/oe.26.029353.

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16

Boye, Robert R., and Raymond K. Kostuk. "Investigation of the effect of finite grating size on the performance of guided-mode resonance filters." Applied Optics 39, no. 21 (July 20, 2000): 3649. http://dx.doi.org/10.1364/ao.39.003649.

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17

Li, Caiyu, Kun Zhang, Yelan Zhang, Yuyang Cheng, and Weijin Kong. "Large-range wavelength tunable guided-mode resonance filter based on dielectric grating." Optics Communications 437 (April 2019): 271–75. http://dx.doi.org/10.1016/j.optcom.2018.12.050.

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18

Karrock, Torben, Moritz Paulsen, and Martina Gerken. "Flexible photonic crystal membranes with nanoparticle high refractive index layers." Beilstein Journal of Nanotechnology 8 (January 20, 2017): 203–9. http://dx.doi.org/10.3762/bjnano.8.22.

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Flexible photonic crystal slabs with an area of 2 cm2 are fabricated by nanoimprint replication of a 400 nm period linear grating nanostructure into a ≈60 µm thick polydimethylsiloxane membrane and subsequent spin coating of a high refractive index titanium dioxide nanoparticle layer. Samples are prepared with different nanoparticle concentrations. Guided-mode resonances with a quality factor of Q ≈ 40 are observed. The highly flexible nature of the membranes allows for stretching of up to 20% elongation. Resonance peak positions for unstretched samples vary from 555 to 630 nm depending on the particle concentration. Stretching results in a resonance shift for these peaks of up to ≈80 nm, i.e., 3.9 nm per % strain. The color impression of the samples observed with crossed-polarization filters changes from the green to the red regime. The high tunability renders these membranes promising for both tunable optical devices as well as visualization devices.

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19

Li, Meiqi, Qichang Ma, Aiping Luo, and Weiyi Hong. "Switchable strong coupling between dual hyperbolic phonon polaritons and photons in hybrid structure of metasurfaces and h-BN slab." New Journal of Physics 24, no. 11 (November 1, 2022): 113011. http://dx.doi.org/10.1088/1367-2630/ac9e6e.

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Abstract We propose an all-dielectric hybrid structure combined with hexagonal boron nitride slab and strontium titanate (STO) metasurfaces to excite dual hyperbolic phonon polaritons (HPhPs) and an additional optical (TO) phonon, and achieve their strong coupling with photons. The metasurfaces, supporting tunable guided-mode resonance via adjusting the external temperature, consists of STO two-dimensional grating and STO layer. Thus, the strong coupling can be switched and tuned actively between the dual HPhPs and TO phonon via adjusting the external temperature of metasurfaces. This work has numerous potential applications on multi-channel biosensors, filters and tunable source and detectors.

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20

Lin, Hsin-An, Hsin-Yun Hsu, Chih-Wei Chang, and Cheng-Sheng Huang. "Compact spectrometer system based on a gradient grating period guided-mode resonance filter." Optics Express 24, no. 10 (May 11, 2016): 10972. http://dx.doi.org/10.1364/oe.24.010972.

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21

Khorrami, Yaser, Davood Fathi, and Raymond C. Rumpf. "Guided-mode resonance filter optimal inverse design using one- and two-dimensional grating." Journal of the Optical Society of America B 37, no. 2 (January 23, 2020): 425. http://dx.doi.org/10.1364/josab.380094.

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22

Wang, Yen-Chieh, Wen-Yea Jang, and Cheng-Sheng Huang. "Lightweight Torque Sensor Based on a Gradient Grating Period Guided-Mode Resonance Filter." IEEE Sensors Journal 19, no. 16 (August 15, 2019): 6610–17. http://dx.doi.org/10.1109/jsen.2019.2911982.

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23

Hsu, Che-Lung, Mount-Learn Wu, Yung-Chih Liu, Yun-Chih Lee, and Jenq-Yang Chang. "Flattened Broadband Notch Filters Using Guided-Mode Resonance Associated With Asymmetric Binary Gratings." IEEE Photonics Technology Letters 18, no. 24 (December 2006): 2572–74. http://dx.doi.org/10.1109/lpt.2006.887193.

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24

Fang, Chaolong, Bo Dai, Zheng Li, Ali Zahid, Qi Wang, Bin Sheng, and Dawei Zhang. "Tunable guided-mode resonance filter with a gradient grating period fabricated by casting a stretched PDMS grating wedge." Optics Letters 41, no. 22 (November 10, 2016): 5302. http://dx.doi.org/10.1364/ol.41.005302.

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25

Gupta, Neelam, and Junyeob Song. "Longwave infrared polarization independent monolithic guided-mode resonance filters with double-sided orthogonal linear gratings." Optics Continuum 1, no. 4 (March 25, 2022): 674. http://dx.doi.org/10.1364/optcon.450823.

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26

Bark, Hyeon Sang, In Hyung Baek, Gyeong-Ryul Kim, Young Uk Jeong, Kyu-Ha Jang, Kitae Lee, and Tae-In Jeon. "Polarization-independent all-dielectric guided-mode resonance filter according to binary grating and slab waveguide dimensions." Optics Express 29, no. 23 (October 29, 2021): 37917. http://dx.doi.org/10.1364/oe.442858.

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27

Kintaka, Kenji, Koji Hatanaka, Junichi Inoue, and Shogo Ura. "Cavity-Resonator-Integrated Guided-Mode Resonance Filter with Nonuniform Grating Coupler for Efficient Coupling with Gaussian Beam." Applied Physics Express 6, no. 10 (October 1, 2013): 102203. http://dx.doi.org/10.7567/apex.6.102203.

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28

Qian, Linyong, Dawei Zhang, Yuanshen Huang, Chunxian Tao, Ruijin Hong, and Songlin Zhuang. "Performance of a double-layer guided mode resonance filter with non-subwavelength grating period at oblique incidence." Optics & Laser Technology 72 (September 2015): 42–47. http://dx.doi.org/10.1016/j.optlastec.2015.02.017.

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29

Gao, Jing-Jhong, Ching-Wei Chiu, Kuo-Hsing Wen, and Cheng-Sheng Huang. "A Compact Detection Platform Based on Gradient Guided-Mode Resonance for Colorimetric and Fluorescence Liquid Assay Detection." Sensors 21, no. 8 (April 15, 2021): 2797. http://dx.doi.org/10.3390/s21082797.

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This paper presents a compact spectral detection system for common fluorescent and colorimetric assays. This system includes a gradient grating period guided-mode resonance (GGP-GMR) filter and charge-coupled device. In its current form, the GGP-GMR filter, which has a size of less than 2.5 mm, can achieve a spectral detection range of 500–700 nm. Through the direct measurement of the fluorescence emission, the proposed system was demonstrated to detect both the peak wavelength and its corresponding intensity. One fluorescent assay (albumin) and two colorimetric assays (albumin and creatinine) were performed to demonstrate the practical application of the proposed system for quantifying common liquid assays. The results of our system exhibited suitable agreement with those of a commercial spectrometer in terms of the assay sensitivity and limit of detection (LOD). With the proposed system, the fluorescent albumin, colorimetric albumin, and colorimetric creatinine assays achieved LODs of 40.99 and 398 and 25.49 mg/L, respectively. For a wide selection of biomolecules in point-of-care applications, the spectral detection range achieved by the GGP-GMR filter can be further extended and the simple and compact optical path configuration can be integrated with a lab-on-a-chip system.

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30

Kanamori, Yoshiaki, Toshikazu Ozaki, and Kazuhiro Hane. "Fabrication of ultrathin color filters for three primary colors using guided-mode resonance in silicon subwavelength gratings." Optical Review 21, no. 5 (September 2014): 723–27. http://dx.doi.org/10.1007/s10043-014-0118-6.

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31

Fehrembach, Anne-Laure, Fabien Lemarchand, Anne Talneau, and Anne Sentenac. "High Q Polarization Independent Guided-Mode Resonance Filter With “Doubly Periodic” Etched Ta$_2$O$_5$ Bidimensional Grating." Journal of Lightwave Technology 28, no. 14 (July 2010): 2037–44. http://dx.doi.org/10.1109/jlt.2010.2050193.

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32

Yukino, Ryoji, Pankaj K. Sahoo, Jaiyam Sharma, Tsukasa Takamura, Joby Joseph, and Adarsh Sandhu. "Wide wavelength range tunable one-dimensional silicon nitride nano-grating guided mode resonance filter based on azimuthal rotation." AIP Advances 7, no. 1 (January 2017): 015313. http://dx.doi.org/10.1063/1.4975344.

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33

Cho, E., B. Kim, S. Choi, J. Han, J. Jin, J. Han, J. Lim, et al. "Design and Fabrication of Label-Free Biochip Using a Guided Mode Resonance Filter with Nano Grating Structures by Injection Molding Process." Journal of Nanoscience and Nanotechnology 11, no. 1 (January 1, 2011): 417–21. http://dx.doi.org/10.1166/jnn.2011.3277.

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34

Wang, Qi, Dawei Zhang, Yuanshen Huang, Zheng-ji Ni, Jiabi Chen, and Songlin Zhuang. "A method to accurately control the period of subwavelength planar holographic grating in the fabrication process of guided mode resonance filter." Optik 122, no. 18 (September 2011): 1654–56. http://dx.doi.org/10.1016/j.ijleo.2010.10.020.

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35

Sang, Tian, Shaohong Cai, and Zhanshan Wang. "Guided-mode resonance filter with an antireflective surface consisting of a buffer layer with refractive index equal to that of the grating." Journal of Modern Optics 58, no. 14 (August 10, 2011): 1260–68. http://dx.doi.org/10.1080/09500340.2011.603442.

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36

Roth, Zachary A., Pradeep Srinivasan, Menelaos K. Poutous, Aaron J. Pung, Raymond C. Rumpf, and Eric G. Johnson. "Azimuthally Varying Guided Mode Resonance Filters." Micromachines 3, no. 1 (March 15, 2012): 180–93. http://dx.doi.org/10.3390/mi3010180.

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37

Magnusson, R., and S. S. Wang. "Transmission bandpass guided-mode resonance filters." Applied Optics 34, no. 35 (December 10, 1995): 8106. http://dx.doi.org/10.1364/ao.34.008106.

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38

Ohtera, Yasuo, Shohei Iijima, and Hirohito Yamada. "Guided-mode resonance in curved grating structures." Optics Letters 36, no. 9 (April 29, 2011): 1689. http://dx.doi.org/10.1364/ol.36.001689.

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39

Vallius, Tuomas, Pasi Vahimaa, and Jari Turunen. "Pulse deformations at guided-mode resonance filters." Optics Express 10, no. 16 (August 12, 2002): 840. http://dx.doi.org/10.1364/oe.10.000840.

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40

Cannistra, Aaron T., Menelaos K. Poutous, Eric G. Johnson, and Thomas J. Suleski. "Performance of conformal guided mode resonance filters." Optics Letters 36, no. 7 (March 25, 2011): 1155. http://dx.doi.org/10.1364/ol.36.001155.

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41

Rochon, P., A. Natansohn, C. L. Callender, and L. Robitaille. "Guided mode resonance filters using polymer films." Applied Physics Letters 71, no. 8 (August 25, 1997): 1008–10. http://dx.doi.org/10.1063/1.119710.

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42

Tibuleac, S., and R. Magnusson. "Reflection and transmission guided-mode resonance filters." Journal of the Optical Society of America A 14, no. 7 (July 1, 1997): 1617. http://dx.doi.org/10.1364/josaa.14.001617.

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43

Saarinen, Jyrki. "Guided-mode resonance filters of finite aperture." Optical Engineering 34, no. 9 (September 1, 1995): 2560. http://dx.doi.org/10.1117/12.208079.

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44

Wang, Yanhui, Xiangjun Li, Tingting Lang, Xufeng Jing, and Zhi Hong. "Multiband guided-mode resonance filter in bilayer asymmetric metallic gratings." Optics & Laser Technology 103 (July 2018): 135–41. http://dx.doi.org/10.1016/j.optlastec.2018.01.017.

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45

Hsu, Hsin-Yun, Yi-Hsuan Lan, and Cheng-Sheng Huang. "A Gradient Grating Period Guided-Mode Resonance Spectrometer." IEEE Photonics Journal 10, no. 1 (February 2018): 1–9. http://dx.doi.org/10.1109/jphot.2018.2793894.

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46

Babu, Sachin, and Jeong-Bong Lee. "Axially-Anisotropic Hierarchical Grating 2D Guided-Mode Resonance Strain-Sensor." Sensors 19, no. 23 (November 28, 2019): 5223. http://dx.doi.org/10.3390/s19235223.

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Guided-mode resonance strain sensors are planar binary gratings that have fixed resonance positions and quality factors decided by material properties and grating parameters. If one is restricted by material choices, the quality factor can only be improved by adjusting the grating parameters. We report a new method to improve quality factor by applying a slotting design rule to a grating design. We investigate this design rule by first providing a theoretical analysis on how it works and then applying it to a previously studied 2D solid-disc guided-mode resonance grating strain sensor design to create a new slotted-disc guided-mode resonance grating design. We then use finite element analysis to obtain reflection spectrum results that show the new design produces resonances with at least a 6-fold increase in quality factor over the original design and more axially-symmetric sensitivities. Lastly, we discuss the applicability of the slotting design rule to binary gratings in general as a means of improving grating performance while retaining both material and resonance position choices.

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47

Mukherjee, A., A. Ghanekar, and M. L. Povinelli. "Electrically tunable guided mode resonance grating for switchable photoluminescence." Applied Physics Letters 120, no. 19 (May 9, 2022): 191108. http://dx.doi.org/10.1063/5.0091526.

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We present a guided mode resonance grating based on incorporation of an electro-optic material with monolayer WS2. The grating is designed to exhibit highly selective directional photo-luminescent emission. We study the effect of doubling the grating period via the introduction of an alternating index perturbation. Using numerical simulations, we show that period doubling leads to the formation of a photonic bandgap and spectral splitting in the absorptivity (or emissivity) spectrum. We anticipate that this effect can either be used to switch on and off the emissivity at a fixed wavelength or toggle between single- and double-wavelength emissions.

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48

Mizutani, Akio, Hisao Kikuta, and Koichi Iwata. "Wave Localization of Doubly Periodic Guided-mode Resonant Grating Filters." Optical Review 10, no. 1 (January 2003): 13–18. http://dx.doi.org/10.1007/s10043-003-0013-z.

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49

Tuambilangana, Christelle, Fabrice Pardo, Emilie Sakat, Patrick Bouchon, Jean-Luc Pelouard, and Riad Haïdar. "Two-mode model for metal-dielectric guided-mode resonance filters." Optics Express 23, no. 25 (November 30, 2015): 31672. http://dx.doi.org/10.1364/oe.23.031672.

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50

Wang, S. S., and R. Magnusson. "Theory and applications of guided-mode resonance filters." Applied Optics 32, no. 14 (May 10, 1993): 2606. http://dx.doi.org/10.1364/ao.32.002606.

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Journal articles on the topic 'Guided mode resonance grating filters'

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