Dynamics of amplified spontaneous emission in the laboratory x-ray laser with random optical inhomogeneities

Fedor A. Starikov

doi:10.1117/12.239746

6 May 1996 Dynamics of amplified spontaneous emission in the laboratory x-ray laser with random optical inhomogeneities

Fedor A. Starikov

Proceedings Volume 2796, ICONO '95: Fundamentals of Laser-Matter Interaction; (1996) https://doi.org/10.1117/12.239746
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

The formation of the amplified spontaneous emission (ASE) in the laboratory x-ray laser with the Markov fluctuations of the dielectrical permittivity (epsilon) is studied by the method of paraxial equation for the transverse correlation function of the radiation field. The fluctuations (epsilon) are found to impose a limit on the ASE spatial coherence and to decrease the power of the coherent ASE. In the case of the weak regular refraction, the ASE scattering by (epsilon) is analogous to the linear absorption and decreases the gain observed. At the strong defocusing refraction the effect of (epsilon) on the ASE has a 'latent' character: an essential fall of the coherence length is accompanied by a relatively small decrease in the axial intensity and by a small broadening of the ASE beam as a whole.

Citation Download Citation

Fedor A. Starikov "Dynamics of amplified spontaneous emission in the laboratory x-ray laser with random optical inhomogeneities", Proc. SPIE 2796, ICONO '95: Fundamentals of Laser-Matter Interaction, (6 May 1996); https://doi.org/10.1117/12.239746

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