One-dimensional coherent four-wave mixing as a way to image the spatial distribution of atoms in laser-produced plasma

D. A. Akimov; Andrei B. Fedotov; Nikolai I. Koroteev; Richard B. Miles; A. N. Naumov; Dmitri A. Sidorov-Biryukov; Alexei M. Zheltikov

doi:10.1117/12.340016

5 February 1999 One-dimensional coherent four-wave mixing as a way to image the spatial distribution of atoms in laser-produced plasma

D. A. Akimov, Andrei B. Fedotov, Nikolai I. Koroteev, Richard B. Miles, A. N. Naumov, Dmitri A. Sidorov-Biryukov, Alexei M. Zheltikov

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Proceedings Volume 3732, ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine; (1999) https://doi.org/10.1117/12.340016
Event: ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, 1998, Moscow, Russian Federation

Abstract

An experimental technique based on coherent one-dimensional four-wave mixing (FWM) with hyper-Raman resonances has been developed for line-by-line imaging of the atomic distribution of excited atoms in a low-temperature plasma of optical breakdown. Investigations of the influence of phase mismatch and one-photon absorption on FWM in a laser-produced plasma demonstrates that FWM images of atomic spatial distributions free of distortions due to phase mismatch and absorption can be obtained for certain stages of plasma expansion. The sensitivity and spatial resolution of FWM imaging of atoms in a laser-produced plasma are estimated.

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D. A. Akimov, Andrei B. Fedotov, Nikolai I. Koroteev, Richard B. Miles, A. N. Naumov, Dmitri A. Sidorov-Biryukov, and Alexei M. Zheltikov "One-dimensional coherent four-wave mixing as a way to image the spatial distribution of atoms in laser-produced plasma", Proc. SPIE 3732, ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, (5 February 1999); https://doi.org/10.1117/12.340016

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KEYWORDS

Plasma

Chemical species

Absorption

Four wave mixing

Ions

Lead

Spatial resolution

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