Title :
Nonlinear optical techniques for plasma diagnostics
Author :
Ochkin, Vladimir Nicolaevich ; Savinov, Sergey Yurievich ; Tskhai, Sergey Nicolaevich ; Czarnetzki, Uwe ; Der Gathen, V. Schulz-von ; Dobele, H.F.
Author_Institution :
P.N. Lebedev Phys. Inst., Acad. of Sci., Moscow, Russia
fDate :
10/1/1998 12:00:00 AM
Abstract :
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
Keywords :
coherent antiStokes Raman scattering; fluorescence spectroscopy; multiwave mixing; nonlinear optics; plasma density; plasma diagnostics; plasma temperature; two-photon spectroscopy; CARS; atomic hydrogen densities; chemical composition; coherent anti-Stokes Raman scattering; double-resonant four-wave mixing; electric field distributions; elevated pressure discharge; emission spectroscopy; low pressure discharge; molecular temperature; nonlinear optical laser spectroscopic techniques; nonlinear optical techniques; plasma diagnostics; two-photon laser induced fluorescence spectroscopy; vibrational population distribution; Atom optics; Atomic measurements; Chemical lasers; Nonlinear optics; Optical mixing; Plasma diagnostics; Raman scattering; Spectroscopy; Stimulated emission; Vibration measurement;
Journal_Title :
Plasma Science, IEEE Transactions on
