Ultra-intense laser propagation with measurement of backscattered light image and spectrum

Takeshi Miyakoshi; Kazuo A. Tanaka; Ryosuke Kodama; Kunioki Mima; Tatsuhiko Yamanaka; Yoneyoshi Kitagawa; Hisanori Fujita; Noriaki Miyanaga; Takayoshi Norimatsu; Tetsuji Kawasaki; Nobuhiko Izumi; J. Sunahara; Yasuhiko Sentoku; Kenjiro Takahashi; Hideaki Habara; Michiaki Mori; T. Matsushita; T. Sonomoto; H. Setoguchi; T. Koase; T. Iwatani; Yusuke Tohyama; M. Tanpo

doi:10.1117/12.375146

11 January 2000 Ultra-intense laser propagation with measurement of backscattered light image and spectrum

Takeshi Miyakoshi, Kazuo A. Tanaka, Ryosuke Kodama, Kunioki Mima, Tatsuhiko Yamanaka, Yoneyoshi Kitagawa, Hisanori Fujita, Noriaki Miyanaga, Takayoshi Norimatsu, Tetsuji Kawasaki, Nobuhiko Izumi, J. Sunahara, Yasuhiko Sentoku, Kenjiro Takahashi, Hideaki Habara, Michiaki Mori, T. Matsushita, T. Sonomoto, H. Setoguchi, T. Koase, T. Iwatani, Yusuke Tohyama, M. Tanpo

Author Affiliations +

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375146
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

We have newly developed a 2D space-resolved spectrometer for an ultra high intense laser plasma experiment. Output of this data, we can obtain 4D information: space, spectrum, and intensity. An optical fiber bundle is combined with a Cross Czerny-Turner type spectrometer to acquire 2D space- resolved spectrum. This has the spectral resolution 0.8 nm and the space 8 micrometers . Back-scattered light was measured from plasmas irradiated with a n ultra-intense laser pulse at laser intensity 10¹⁹ W/cm². The obtained spectra show distinctive difference depending on both spatial and intensity profiles.

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Takeshi Miyakoshi, Kazuo A. Tanaka, Ryosuke Kodama, Kunioki Mima, Tatsuhiko Yamanaka, Yoneyoshi Kitagawa, Hisanori Fujita, Noriaki Miyanaga, Takayoshi Norimatsu, Tetsuji Kawasaki, Nobuhiko Izumi, J. Sunahara, Yasuhiko Sentoku, Kenjiro Takahashi, Hideaki Habara, Michiaki Mori, T. Matsushita, T. Sonomoto, H. Setoguchi, T. Koase, T. Iwatani, Yusuke Tohyama, and M. Tanpo "Ultra-intense laser propagation with measurement of backscattered light image and spectrum", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375146

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