Accession Number : AD0682816

Title :   OPTICAL GENERATION BY A SCATTERING MEDIUM WITH NEGATIVE RESONANCE ABSORPTION,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Letokhov,V. S.

Report Date : 19 JUN 1968

Pagination or Media Count : 21

Abstract : Theoretical studies were made of the optical generation of a scattering medium with a negative resonance absorption for a case where the mean free path of a photon due to scattering is much shorter than the dimensions of the scattering region. The possibility of laser action in such a system was pointed out in an earlier paper. The present laser is a variant of a laser with a nonresonant (negative) feedback and the study of its characteristics is topical from the standpoint of producing highly stable optical frequency standards. In this study, the author derives for such a laser (1) the generation threshold, (2) the dynamics of the steady-state stationary regime and spectral narrowing, and (3) the limiting spectral width under generation conditions. (Author)

Descriptors :   (*LASERS, THEORY), LIGHT TRANSMISSION, SCATTERING, RESONANCE ABSORPTION, FEEDBACK, FREQUENCY, STANDARDS, USSR

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE