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8 March 2019 Through the (conducting) looking-glass: transparent conducting oxides for nanophotonic applications (Conference Presentation)
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Proceedings Volume 10919, Oxide-based Materials and Devices X; 109191T (2019) https://doi.org/10.1117/12.2512275
Event: SPIE OPTO, 2019, San Francisco, California, United States
Abstract
Transparent Conducting Oxide (TCO) materials are degenerately-doped, wide-bandgap semiconductors which exhibit simultaneous high-conductivity and visible transparency. These unique properties are well known and frequently exploited for technologies such as touch-screen devices. In recent years, TCOs have been recognized as a promising material platform for nanophotonic devices, namely because of their simple, compatible fabrication, low-losses, dynamic modulation, and novel low-index properties. In this talk, I will highlight recent progress in the field of TCO-based nanophotonics, share our ongoing results and observations, and discuss future research challenges and directions. In particular, I will discuss our progress in developing metal-dielectric hybrid metasurfaces which incorporate TCOs for all-optical, ultrafast switching. Here, we incorporate defect-rich zinc oxide with a refractory titanium nitride metasurface for efficient light modulation at near-terahertz switching frequencies. My talk will also focus on TCO films for studying and observing low-index phenomena. Our recent work with aluminum-doped zinc oxide films demonstrates the ability for low-index materials to both enhance negative refraction and engender strongly coupled plasmonic systems with large room-temperature Rabi frequencies. Our work signifies the strong potential for incorporating transparent conducting oxides into plasmonic and nanophotonic devices to provide advances toward practical technologies and depth in scientific understanding.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexandra Boltasseva, Clayton DeVault, Vincenzo Bruno, Soham Saha, Zhaxylyk Kudyshev, Aveek Dutta, Stefano Vezzoli, Marcello Ferrera, Daniele Faccio, and Vladimir M. Shalaev "Through the (conducting) looking-glass: transparent conducting oxides for nanophotonic applications (Conference Presentation)", Proc. SPIE 10919, Oxide-based Materials and Devices X, 109191T (8 March 2019); doi: 10.1117/12.2512275; https://doi.org/10.1117/12.2512275
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