19 July 1996 X-ray laser coherence in the presence of density fluctuations
Author Affiliations +
Abstract
A ray-tracing technique based on the radiation transfer equation is used to describe the spontaneous emission gain in active media. Using this approach analytical solutions for the intensity distribution and coherence function in the output plane of an active medium with parabolic transverse profiles of dielectric constant and gain coefficient are presented. Applicability of the approximation when contribution into output emission is made by only spontaneous sources adjacent to the far face region of an active medium is analyzed. This approximation is seen not to be applicable for many real situations and it is necessary to take into account the sources in the whole active medium. The effect of dielectric constant fluctuations on output coherence is treated by using the phase approximation of Huygens-Kirchhoff method.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Valerii V. Kolosov, Richard P. Ratowsky, Alexander A. Zemlyanov, Richard A. London, "X-ray laser coherence in the presence of density fluctuations", Proc. SPIE 2859, Hard X-Ray/Gamma-Ray and Neutron Optics, Sensors, and Applications, (19 July 1996); doi: 10.1117/12.245116; https://doi.org/10.1117/12.245116
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Spatial coherence of an x ray laser at bending the...
Proceedings of SPIE (October 21 1999)
X-ray laser coherence in the presence of density fluctuations
Proceedings of SPIE (November 01 1997)
Development of a short-pulse Ne-like x-ray laser
Proceedings of SPIE (September 25 1995)
Spatial coherence diagnostic for x-ray lasers
Proceedings of SPIE (February 05 1992)
The Goos-Hanchen shift in Helmholtz-Gauss beams
Proceedings of SPIE (September 11 2006)

Back to Top