Quality measurements of KrF laser beams under high-repetition rate operation with advanced high-speed photography: preparatory experiments

Koichi Kasuya; Takamasa Suzuki; S. Matsuno; Masato Watanabe; Yasumasa Kawakita; T. Kuwahara; Hidekazu Shioda; Hirotaka Kanazawa; H. Okuda

doi:10.1117/12.204953

31 March 1995 Quality measurements of KrF laser beams under high-repetition rate operation with advanced high-speed photography: preparatory experiments

Koichi Kasuya, Takamasa Suzuki, S. Matsuno, Masato Watanabe, Yasumasa Kawakita, T. Kuwahara, Hidekazu Shioda, Hirotaka Kanazawa, H. Okuda

Author Affiliations +

Proceedings Volume 2502, Gas Flow and Chemical Lasers: Tenth International Symposium; (1995) https://doi.org/10.1117/12.204953
Event: Gas Flow and Chemical Lasers: Tenth International Symposium, 1994, Friedrichshafen, Germany

Abstract

Although much efforts have been made to develop higher performance excimer lasers mainly in Europe and Japan supported by the community and the government, an interdisciplinary subject in the paper title has not ever been investigated in detail. To take care of this un- attacked research region lying between various research groups, we tried to measure the beam quality of a discharge-pumped KrF laser under a rather high repetition rate operation. As we are interested in the diagnostics of various high speed phenomena, we measured the beam quality with advanced high speed photography. The spatial and temporal beam patterns were observed under various experimental conditions, and they were analyzed to start our high repetition-rate experiments. The results showed that an unstable resonator could produce high quality laser beams with the lower beam divergence angle.

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Koichi Kasuya, Takamasa Suzuki, S. Matsuno, Masato Watanabe, Yasumasa Kawakita, T. Kuwahara, Hidekazu Shioda, Hirotaka Kanazawa, and H. Okuda "Quality measurements of KrF laser beams under high-repetition rate operation with advanced high-speed photography: preparatory experiments", Proc. SPIE 2502, Gas Flow and Chemical Lasers: Tenth International Symposium, (31 March 1995); https://doi.org/10.1117/12.204953

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