Nonlinear optical techniques for plasma diagnostics
Nonlinear optical techniques for plasma diagnostics
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用于等离子体诊断的非线性光学技术
DOI:
10.1109/27.736047
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发表时间:
1998
影响因子:
1.5
通讯作者:
H. Döbele
中科院分区:
文献类型:
--
作者:
V. Ochkin;S. Savinov;S. Tskhai;U. Czarnetzki;V. D. Gathen;H. Döbele
The application of various nonlinear optical laser spectroscopic techniques to plasma diagnostics are reported. The techniques discussed in this paper are two-photon laser induced fluorescence spectroscopy, double-resonant four-wave mixing, coherent anti-Stokes Raman-scattering (CARS), and a combination of emission spectroscopy and CARS. They are applied to measurements of atomic hydrogen densities, molecular temperature, chemical composition, electric field distributions, and vibrational population distribution. The basic principles are described and important aspects of the methods are discussed in context with application to various kinds of discharges at low and elevated pressures.