Two-Wavelength Spectral Interferometry Implementation for Studying the Ultrashort Laser Pulse Heated Targets Expansion

被引：0

作者：

Borisov, E. S. ^{[1
]}

Gavrilov, D. S. ^{[1
]}

Kakshin, A. G. ^{[1
]}

Loboda, E. A. ^{[1
]}

Potapov, A. V. ^{[1
]}

Govras, E. A. ^{[1
]}

机构：

[1] All Russia Res Inst Tech Phys, Zababakhin Russian Fed Nucl Ctr, Snezhinsk 456770, Chelyabinsk obl, Russia

来源：

INSTRUMENTS AND EXPERIMENTAL TECHNIQUES | 2024年 / 67卷 / 04期

关键词：

D O I：

10.1134/S0020441224700933

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The chirped pulse spectral interferometry method was used to measure the copper-target free surface motion velocity under the impact of an ultrashort laser pulse with an intensity of similar to 10(18) W/cm(2). In order to obtain information on the motion of plasma layers with different electron densities, a two-channel interferometer was developed, which provides registration of hydrodynamic parameters of the target expansion process for the probe laser radiation at 1054 and 527-nm wavelengths. The spatial and temporal characteristics of the phase shift and the target reflectivity for the probe radiation were measured, and the two critical-density surfaces velocity evolution over time were reconstructed.

引用

页码：761 / 767

页数：7

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