Spectral line broadening due to Coulomb interaction

Journal Article · Fri Jun 01 04:00:00 EDT 1979 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5909330

Smirnov, G I; Shapiro, D A

The effect of Coulomb scattering on the velocity distribution and on the emission spectra of ions in a low temperature plasma is investigated. It is shown that nonlinear spectral structures are particularly sensitive to Coulomb diffusion of the ions in velocity space. The dependence of the broadening ..gamma.. of saturated ion laser lines, induced by ion-ion collisions, on the concentration n/sub i/ and temperature T/sub i/ of a gas discharge plasma is found. This has the form ..gamma.. proportional n/sub i//sup 1/2/ T/sub i//sup -1/4/ over a rather broad range of variation of the parameters of the active medium. The role of the interaction between the ions and the plasma oscillations in forming the contours of nonlinear spectral resonances is discussed.

• Research Organization: Institute of Automation and Electrometry
• OSTI ID: 5909330
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 49:6; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

640420* -- Fluid Physics-- Properties & Structure of Fluids-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BASIC INTERACTIONS
COULOMB SCATTERING
ELASTIC SCATTERING
ELECTRIC DISCHARGES
ELECTROMAGNETIC INTERACTIONS
EMISSION SPECTRA
INTERACTIONS
ION DENSITY
ION TEMPERATURE
LINE BROADENING
PLASMA
PLASMA WAVES
SCATTERING
SPECTRA
VELOCITY