Ripple growth of laser beam propagating in the multilevel photoionization system

Yasushi Takizawa; Ryota Murakami; Koji Nagasaka; Keiji Nomaru; Yasukazu Izawa

doi:10.1117/12.375091

11 January 2000 Ripple growth of laser beam propagating in the multilevel photoionization system

Yasushi Takizawa, Ryota Murakami, Koji Nagasaka, Keiji Nomaru, Yasukazu Izawa

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375091
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Spatial near-resonant effects on laser beam propagation in a multilevel photoionization system have been studied by 2D simulation. It was found that the initial amplitude of nonuniformity grows up during the propagation, which degrades the photoionization rate of the target atom. The spatial effects become large for the longer incident laser pulse. A semi-analytical formula to analyze the growth of nonuniformity in the multilevel photoionization system was derived.

Citation Download Citation

Yasushi Takizawa, Ryota Murakami, Koji Nagasaka, Keiji Nomaru, and Yasukazu Izawa "Ripple growth of laser beam propagating in the multilevel photoionization system", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375091

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