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10 March 2020 Broadband high-speed and large-amplitude all-optical switching with cadmium oxide (Conference Presentation)
Soham Saha, Benjamin T. Diroll, Joshua Shank, Zhaxylyk A. Kudyshev, Aveek Dutta, Sarah N. Chowdhury, Ting S. Luk, Salvadore Campione, Richard D. Shaller, Vladimir M. Shalaev, Michael G. Wood, Alexandra Boltasseva
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Proceedings Volume 11281, Oxide-based Materials and Devices XI; 1128123 (2020) https://doi.org/10.1117/12.2560073
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
We experimentally investigate how the static and dynamic optical properties of cadmium oxide evolve with yttrium doping, for the design of optical and plasmonic devices spanning the near-infrared to the mid-infrared wavelengths. The metallicity is seen to increase and the epsilon-near-zero point blue-shifts with increasing yttrium-concentrations. We demonstrate broadband, optical-pump-induced reflection and transmission modulation ((up to 135% near ENZ), with picosecond response-times controlled by doping-concentration.
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Soham Saha, Benjamin T. Diroll, Joshua Shank, Zhaxylyk A. Kudyshev, Aveek Dutta, Sarah N. Chowdhury, Ting S. Luk, Salvadore Campione, Richard D. Shaller, Vladimir M. Shalaev, Michael G. Wood, and Alexandra Boltasseva "Broadband high-speed and large-amplitude all-optical switching with cadmium oxide (Conference Presentation)", Proc. SPIE 11281, Oxide-based Materials and Devices XI, 1128123 (10 March 2020); https://doi.org/10.1117/12.2560073
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KEYWORDS
Oxides
Cadmium
Switching
Mid-IR
Optical properties
Plasmonics
Doping
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