Dr. Ryota Ishii Profile

Dr. Ryota Ishii

at Kyoto Univ

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Author

Publications (4)

Proceedings Article | 4 October 2024 Presentation

Optoelectronic properties of ultrawide-band-gap semiconductors probed by deep-ultraviolet spectroscopy

Ryota Ishii, Mitsuru Funato, Yoichi Kawakami

Proceedings Volume PC13115, PC1311509 (2024) https://doi.org/10.1117/12.3028588

KEYWORDS: Deep ultraviolet, Spectroscopy, Semiconductors, Optoelectronics, Near field scanning optical microscopy, Spatial resolution, Quantum control, Physics, Luminescence, Excitons

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Proceedings Article | 21 March 2023 Presentation

Spontaneous and stimulated emission physics of aluminum nitride

Ryota Ishii, Toru Nagashima, Reo Yamamoto, Tatsuya Hitomi, Mitsuru Funato, Yoichi Kawakami

Proceedings Volume PC12421, (2023) https://doi.org/10.1117/12.2647637

KEYWORDS: Aluminum nitride, Physics, Crystals, Cryogenics, Semiconductors, Scattering, Optical properties, Excimer lasers, Epitaxy, Emission spectroscopy

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Proceedings Article | 5 March 2022 Presentation

Luminescence spectroscopies on 265-nm AlGaN DUV LEDs and AlN films grown on AlN substrates

Ryota Ishii, Mitsuru Funato, Yoichi Kawakami

Proceedings Volume PC12001, PC120010S (2022) https://doi.org/10.1117/12.2608423

KEYWORDS: Aluminum nitride, Light emitting diodes, Deep ultraviolet, Luminescence, External quantum efficiency, Spectroscopy, Internal quantum efficiency, Quantum efficiency, Applied physics, Silicon

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Proceedings Article | 5 March 2021 Presentation

Recent progress in deep-ultraviolet scanning near-field optical microscope: a tool visualizing the luminescence properties of Al-rich AlGaN active layers

Ryota Ishii, Mitsuru Funato, Yoichi Kawakami

Proceedings Volume 11686, 116861S (2021) https://doi.org/10.1117/12.2576763

KEYWORDS: Near field scanning optical microscopy, Luminescence, Deep ultraviolet, Visualization, Optical microscopes, Spectroscopy, Quantum efficiency, Photonics, Light emitting diodes, Viruses

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