Use of extended laser plasma for generation of high-order harmonics of picosecond duration
R. A. GaneevOphthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495, JapanGanjaboy S. BoltaevInstitute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences, Akademgorodok, Tashkent 100125, UzbekistanSh ReyimbaevInstitute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences, Akademgorodok, Tashkent 100125, UzbekistanH. SherniyozovInstitute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences, Akademgorodok, Tashkent 100125, UzbekistanT. UsmanovInstitute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences, Akademgorodok, Tashkent 100125, Uzbekistan
ABI
Abstract
We report the results of experimental investigations on the generation of picosecond radiation harmonics in extended laser plasma produced on the surface of different metal targets. The effect of plasma length, heating pulse duration and delay between the heating and transformable pulses on the efficiency of conversion to higher harmonics is studied. The λ = 1064 nm radiation conversion to a short-wavelength (down to 50 nm, 21st harmonic) range in extended plasma of several metals is demonstrated.
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