Hard x-ray and high-energy proton production under femtosecond laser interaction with free liquid surface

Daria S. Uryupina; Vyacheslav M. Gordienko; P. M. Mikheev; Andrey B. Savel'ev; R. V. Volkov

doi:10.1117/12.558602

10 June 2004 Hard x-ray and high-energy proton production under femtosecond laser interaction with free liquid surface

Daria S. Uryupina, Vyacheslav M. Gordienko, P. M. Mikheev, Andrey B. Savel'ev, R. V. Volkov

Proceedings Volume 5482, Laser Optics 2003: Superintense Light Fields and Ultrafast Processes; (2004) https://doi.org/10.1117/12.558602
Event: Laser Optics 2003, 2003, St. Petersburg, Russian Federation

Abstract

It was demonstrated experimentally that liquid with low pressure of saturated vapor can be used as target for femtosecond laser plasma formation. Plasma formed at free liquid surface (vacuum oil) in vacuum by femtosecond laser pulse with intensity above 10¹⁶ W/cm² is similar to high-temperature plasma formed at solid target surface. So, from x-ray and ionic time-of-flight measurements the temperature of hot electrons for oil target is 6 ± 3 keV and for crystalline silicon target is 4 ± 1 keV. The optics diagnostic of liquid surface relaxation has shown that upper repetition rate of laser pulses for interaction with non-perturbed liquid surface is 10 Hz.

Citation Download Citation

Daria S. Uryupina, Vyacheslav M. Gordienko, P. M. Mikheev, Andrey B. Savel'ev, and R. V. Volkov "Hard x-ray and high-energy proton production under femtosecond laser interaction with free liquid surface", Proc. SPIE 5482, Laser Optics 2003: Superintense Light Fields and Ultrafast Processes, (10 June 2004); https://doi.org/10.1117/12.558602

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