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

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

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.

Citation Download Citation

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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