Calculations of Stark-broadened line shapes in phase-conjugate degenerate four-wave mixing laser spectroscopy

Journal Article · Sat Oct 01 04:00:00 EDT 2005 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.72.046405· OSTI ID:20709774

Dzierzega, Krzysztof; Olchawa, Wieslaw ^[1]

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1. M. Smoluchowski Institute of Physics, Jagellonian University, ulica Reymonta 4, 30-059 Cracow (Poland)

The Stark-broadened line shapes for phase-conjugate degenerate four-wave mixing (PCDFWM) laser spectroscopy are studied. The line profiles are calculated for high-density (N{sub e}>10{sup 21} m{sup -3}) plasma conditions and for different contributions of the Doppler broadening. Calculations are performed in the limit of low laser intensities using the perturbation approach. The theoretical model takes into account the Stark effect together with the ion dynamics, the electron collisions, and the Doppler effect. The resultant PCDFWM spectral profiles are significantly less broadened and less asymmetric than the emission profiles but shifted by similar magnitudes. Moreover, the results of our calculations show the sub-Doppler character of the PCDFWM profiles and also their strong dependence on the geometric configuration of the pump and the probe laser beams.

• OSTI ID: 20709774
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 4 Vol. 72; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASYMMETRY
CONFIGURATION
DENSITY
DISTURBANCES
DOPPLER BROADENING
DOPPLER EFFECT
ELECTRON COLLISIONS
EMISSION
FREQUENCY MIXING
INTERACTIONS
IONS
LASER SPECTROSCOPY
LASERS
PERTURBATION THEORY
PHOTON BEAMS
PLASMA
PLASMA DENSITY
PROBES
SHAPE
STARK EFFECT