Characteristics of high-order harmonic generation from solid-surface plasmas depending on driving laser conditions

Atsushi Ishizawa; Teruto Kanai; Tsuneyuki Ozaki; Hiroto Kuroda

doi:10.1117/12.375154

11 January 2000 Characteristics of high-order harmonic generation from solid-surface plasmas depending on driving laser conditions

Atsushi Ishizawa, Teruto Kanai, Tsuneyuki Ozaki, Hiroto Kuroda

Author Affiliations +

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375154
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Investigations have been performed on the spatial distributions of high-order generation from solid surface plasmas. It is found that the divergence of the harmonics gradually increases at intensities between I(lambda) ² equals 2 X 10¹⁵ and 2 X 10¹⁶ X cm^-2 X micrometers ² ps, 1054 nm laser pulse with typical maximum intensities of approximately 2 X 10¹⁷ W X cm^-2. We experimentally observe that the divergence of the harmonics decreases as the order of the harmonic increases. We also measured that the divergence of the third harmonic emission is smaller for 2.2 ps width lasers as compared with those for 100 ps pulse width lasers.

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Atsushi Ishizawa, Teruto Kanai, Tsuneyuki Ozaki, and Hiroto Kuroda "Characteristics of high-order harmonic generation from solid-surface plasmas depending on driving laser conditions", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375154

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