Prof. Gwanho Yoon Profile

Prof. Gwanho Yoon

at Seoul National Univ of Science and Technology

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Author

Publications (3)

Proceedings Article | 4 October 2023 Presentation

Bandgap engineered low-loss a-Si:H for efficient dielectric metasurfaces at visible frequencies

Younghwan Yang, Gwanho Yoon, Minkyung Kim, Dasol Lee, Junsuk Rho

Proceedings Volume PC12646, PC126460F (2023) https://doi.org/10.1117/12.2672557

KEYWORDS: Incident light, Amorphous silicon, Optical components, Engineering, Refractive index, Dielectrics, Chemical vapor deposition, Phase measurement, Miniaturization

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Proceedings Article | 4 October 2022 Presentation

Suppressing optical losses of hydrogenated amorphous silicon for dielectric metasurfaces working at the visible frequencies, and revealing its structural disorder. (Conference Presentation)

Younghwan Yang, Gwanho Yoon, Sunghak Park, Ki Tae Nam, Junsuk Rho

Proceedings Volume PC12202, PC1220206 (2022) https://doi.org/10.1117/12.2632722

KEYWORDS: Amorphous silicon, Semiconductors, Refractive index, Visible radiation, Titanium dioxide, Dielectrics, Silicon, Gallium nitride, Plasma enhanced chemical vapor deposition, Plasma

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Proceedings Article | 20 August 2020 Poster

Enhanced cross-polarization efficiency of a-Si:H metasurfaces via chemical equilibrium in PE-CVD

Younghwan Yang, Gwanho Yoon, Sunghak Park, Seok Nangung, Ki Tae Nam, Junsuk Rho

Proceedings Volume 11467, 114672F (2020) https://doi.org/10.1117/12.2567588

KEYWORDS: Amorphous silicon, Diffraction, Refractive index, Atmospheric plasma, Modulation, Optical properties, Silicon, Plasma

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