Spectral features of beam propagation in resonant two-level media: I. Propagation-induced changes in the phase of cw optical beams

Authors
Konukhov, AI Melnikov, LA Veshneva, IV
Citation
Ai. Konukhov et al., Spectral features of beam propagation in resonant two-level media: I. Propagation-induced changes in the phase of cw optical beams, LASER PHYS, 10(2), 2000, pp. 614-618
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
LASER PHYSICS
ISSN journal
1054660X → ACNP
Volume
10
Issue
2
Year of publication
2000
Pages
614 - 618
Database
ISI
SICI code
1054-660X(200003/04)10:2<614:SFOBPI>2.0.ZU;2-8
Abstract
The change in the phase of a light beam propagating in an optically dense e xtended medium is considered. A qualitative model is used to reveal the mec hanism behind the relation between spatial and spectral characteristics of light pulses. The self-action of a high-intensity pulsed beam under conditi ons of strong diffraction leads to the modulation of the phase in time. Thi s process is responsible for a variation in the carrier frequency of the pu lse.