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9 November 2016 Tunable metasurfaces and optical Tamm states with liquid crystals (Conference Presentation)
Kuo-Ping Chen, Meng-Ying Lin
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Proceedings Volume 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV; 99210T (2016) https://doi.org/10.1117/12.2238516
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States
Abstract
Planar photonics, like metasurfaces and nanoantennas, got immense attention because of the ability controlling the flow of light. The tunability of metasurfaces system could be realized by combining with liquid crystals. In this work, several novel devices, like tunable nanoantennas array with color, diffraction control of binary gratings metasurfaces, and optical Tamm states would be presented. 1. By comparing different dimensions of nanoantennas, the anchoring energy of liquid crystal could be adjusted in nanoscale. The different shapes of nanoantennas show the difference in color or monotone change when applying different voltages. 2. The diffraction ratio of metasurface could be controlled by nematic liquid crystal by controlling the polarization direction by applying voltages. 3. Optical Tamm states could be realized and adjustable by combining liquid photonic crystal with metasurface. All of those ideas are realized in both modeling and experimental, which could give a great impact to the field of future application in tunable metasurfaces.
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Kuo-Ping Chen and Meng-Ying Lin "Tunable metasurfaces and optical Tamm states with liquid crystals (Conference Presentation)", Proc. SPIE 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV, 99210T (9 November 2016); https://doi.org/10.1117/12.2238516
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KEYWORDS
Liquid crystals
Nanoantennas
Diffraction
Binary data
Control systems
Diffraction gratings
Liquids
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