High-efficiency bispectral laser for EUV

A. P. Zhevlakov; R. P. Seisyan; V. G. Bespalov; V. V. Elizarov; A. S. Grishkanich; S. V. Kascheev

doi:10.1117/12.2185192

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12 May 2015 High-efficiency bispectral laser for EUV

A. P. Zhevlakov, R. P. Seisyan, V. G. Bespalov, V. V. Elizarov, A. S. Grishkanich, S. V. Kascheev

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Proceedings Volume 9512, Advances in X-ray Free-Electron Lasers Instrumentation III; 95121W (2015) https://doi.org/10.1117/12.2185192
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

The results of experimental and theoretical modeling of multistage Raman conversion in compressed hydrogen with a buffer gas under using the lasing of neodymium-crystalline mediums to obtain the seed radiation for CO₂ power amplifier in the double-pulse and bispectral primary laser while maintaining efficiency of LPP EUV source are presented. This scheme allows as significantly decrease level of pumping consumption and tune a delay time up to 820 ns between a weak power (initiating a plasma cloud) and main power pulses irradiated the converter target. The lasing intensity in the focal spots was 0.2 GW/cm² and 5TW/cm² respectively for wavelengths of 1.064 μm and 9.2 μm.

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A. P. Zhevlakov, R. P. Seisyan, V. G. Bespalov, V. V. Elizarov, A. S. Grishkanich, and S. V. Kascheev "High-efficiency bispectral laser for EUV", Proc. SPIE 9512, Advances in X-ray Free-Electron Lasers Instrumentation III, 95121W (12 May 2015); https://doi.org/10.1117/12.2185192

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