Femtosecond x-ray line emission from specially designed targets irradiated by short laser pulses

Alexander A. Andreev; Hidetoshi Nakano; Jiri Limpouch

doi:10.1117/12.509680

7 January 2004 Femtosecond x-ray line emission from specially designed targets irradiated by short laser pulses

Alexander A. Andreev, Hidetoshi Nakano, Jiri Limpouch

Proceedings Volume 5196, Laser-Generated and Other Laboratory X-Ray and EUV Sources, Optics, and Applications; (2004) https://doi.org/10.1117/12.509680
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The invention of high-power ultra short pulse lasers has opened way to investigations aimed at creation of a new type of bright x-ray source for different applications including material science and time resolved x-ray diffraction for biology. The conversion efficiency of the laser energy incident onto a solid target into the x-ray emission depends on many factors, including the temporal profile of laser pulse. We report here the results of our theoretical and experimental investigations of the line x-ray emission from layer solid targets irradiated by ultra short laser pulses. The parameters of laser pre-pulse and target thickness are optimized in order to get the maximum laser energy conversion into the emission in the selected x-ray line. Multi-layer foils are proposed in order to increase the energy of K-α line emission from laser plasma simultaneously with shortening of x-ray pulse up to hundred femtoseconds. The emission is studied, both experimentally, and by means of analytical model and numerical simulations.

Citation Download Citation

Alexander A. Andreev, Hidetoshi Nakano, and Jiri Limpouch "Femtosecond x-ray line emission from specially designed targets irradiated by short laser pulses", Proc. SPIE 5196, Laser-Generated and Other Laboratory X-Ray and EUV Sources, Optics, and Applications, (7 January 2004); https://doi.org/10.1117/12.509680

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