Stark effect in three-dimensional stochastic electric fields and a static magnetic field of a helium plasma

Journal Article · Thu Sep 01 04:00:00 EDT 1977 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.324278· OSTI ID:7303754

Kim, S H

Atomic absorption spectra of the He I plasma in the static magnetic field in the absence of laser radiation are different from spectra in the presence of laser radiation. Especially, it has been theoretically predicted that the spectral shift of the satellite line, which is seen in the latter case, does not exist in the former case. In this paper, the effect of three-dimensional high-frequency electric fields on the sigma/sub +/, sigma/sub -/, and ..pi.. components of the allowed 1 /sup 1/S/sub 0/-3 /sup 1/P/sub 1/ transition and the forbidden 1 /sup 1/S/sub 0/-3 /sup 1/D/sub 2/ lines in atomic absorption spectra of the He I plasma in a static magnetic field in the absence of a laser beam is investigated from the coupled equations for the probability amplitudes of atomic states. It is shown that they should give rise to a spectral shift of the allowed lines and satellites about forbidden lines. The calculation reveals that the shift is proportional to the mean-square stochastic electric field, and that the ratio of the intensity of the near satellite to that of the far satellite is different from the ratio obtained by the second-order perturbation theory or the three-level rotating-wave approximation. Discussion is given for the validity of this theory.

• Research Organization: Department of Nuclear Engineering, Hanyang University, Seoul 133, Korea
• OSTI ID: 7303754
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 48:9; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ABSORPTION SPECTRA
COLLISIONLESS PLASMA
CRYOGENIC FLUIDS
DIFFERENTIAL EQUATIONS
ELECTRIC FIELDS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EQUATIONS
FLUIDS
FUNCTIONS
HELIUM
MAGNETIC FIELDS
NONMETALS
PLASMA
PLASMA DIAGNOSTICS
RARE GASES
SCHROEDINGER EQUATION
SPECTRA
SPECTRAL SHIFT
STARK EFFECT
WAVE EQUATIONS
WAVE FUNCTIONS