Ms. Junko Watanabe Profile

Junko Watanabe

at Tokyo Univ of Science

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Author

Publications (3)

Proceedings Article | 30 September 2024 Presentation + Paper

Inspection of internal structures of objects by laser ultrasonics using photorefractive liquid crystals

Takeo Sasaki, Ryoji Masuzawa, Ryouta Machida, Yoshikaze Umebayashi, Miku Nagaoka, Junko Watanabe, Khoa Van Le, Yumiko Naka

Proceedings Volume 13121, 1312107 (2024) https://doi.org/10.1117/12.3026072

KEYWORDS: Laser ultrasonics, Liquid crystals, Aluminum, Pulsed laser operation, Laser irradiation, Vibration, Pulse signals, Reflection, Acoustic waves, Signal detection

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Proceedings Article | 18 June 2024 Presentation + Paper

Preparation of fast-response photorefractive liquid crystals and their application to coaxial optical laser ultrasonics

Takeo Sasaki, Miku Nagaoka, Junko Watanabe, Yoshikaze Umebayashi, Ryouta Machida, Ryoji Masuzawa, Yumiko Naka, Khoa Le

Proceedings Volume 13015, 130150X (2024) https://doi.org/10.1117/12.3022041

KEYWORDS: Laser ultrasonics, Liquid crystals, Laser irradiation, Vibration, Pulsed laser operation, Aluminum, Reflection, Pulse signals, Acoustic waves, Refractive index

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Proceedings Article | 31 May 2023 Presentation + Paper

Laser ultrasonics for measurement of the thickness of metal plates using a photorefractive liquid crystal

Takeo Sasaki, Toshinobu Takashi, Gouta Ikeda, Junko Watanabe, Miku Nagaoka, Shinnosuke Yamazaki, Yumiko Naka, Khoa Van Le

Proceedings Volume 12574, 1257408 (2023) https://doi.org/10.1117/12.2664898

KEYWORDS: Liquid crystals, Laser ultrasonics, Aluminum, Vibration, Photorefraction, Electric fields, Signal intensity, Acoustic waves, Mixtures, Laser irradiation

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