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1 September 2015 Birefringence modulation of thermally driven metal nanograting
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Abstract
Plasmonic nanograting consisting of thermally-driven Au/SiO2 bimorph beams is developed that modulate birefringence for at the visible wavelength. From electromagnetic field simulation, the phase difference at 650 nm is calculated to be modulated from 68.5 to 23.5 degree by actuating bimorph beams. The phase difference of fabricated modulator was measured at the wavelength range of from 500 to 800 nm with a driving voltage of 10 V. Phase modulation is obtained, and the maximum variation is -3.3 degree at 646 nm. The maximum drive current is 100 mA.
Conference Presentation
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Takashi Shimura, Miho Ishii, Kentaro Iwami, Hideaki Nagasaki, and Norihiro Umeda "Birefringence modulation of thermally driven metal nanograting", Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 95441K (1 September 2015); https://doi.org/10.1117/12.2188131
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