Imaging of the spatial distribution of atoms in a laser-produced plasma with one-dimensional coherent hyper-Raman scattering in wide-aperture beams

An experimental technique based on coherent one-dimensional four-wave mixing with hyper-Raman resonances has been developed for line-by-line imaging of excited atoms in a low-temperature plasma of optical breakdown. The technique was used to visualize the spatial distribution of excited lead atoms in a plasma of optical breakdown produced on a metal target. The technique of line-by-line plasma imaging was compared with the four-photon technique of point-by-point measurements. The estimates of the spatial resolution of the technique under study are presented and the potentialities of its application to plasma diagnostics are discussed.

Akimov, D. A., Zheltikov, A. M., Koroteev, N. I., Miles, R. B., Naumov, A. N., Sidorov-Biryukov, D. A., & Fedotov, A. B.

Akimov, DA||Zheltikov, AM||Koroteev, NI||Miles, RB||Naumov, AN||Sidorov-Biryukov, DA||Fedotov, AB

Imaging of the spatial distribution of atoms in a laser-produced plasma with one-dimensional coherent hyper-Raman scattering in wide-aperture beams Academic Article