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Proceedings Paper

Research of the narrow-angle beam diffraction
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Paper Abstract

The diffraction of narrow sharply focused beam propagating through the free space and nonlinear medium was studied. The validity of two approximated approaches for analysis of narrow beam diffraction was studied on the base of comparison with the solution of Kirchgof-Helmholtz diffraction. Both of these approaches is based on the particular solution of Helmholtz equation, which is corresponded with propagation of unidirectional wave. In the first of them attenuating waves are taken into account for the case where the spatial spectrum width is greater than the wave number. The second one is based on the neglect of contribution from attenuating waves. Also, validity of a parabolic wave equation for these situations was researched.

Paper Details

Date Published: 27 February 2004
PDF: 7 pages
Proc. SPIE 5396, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean, (27 February 2004); doi: 10.1117/12.548325
Show Author Affiliations
Vadim V. Dudorov, Institute of Atmospheric Optics (Russia)
Grigory A. Filimonov, Institute of Atmospheric Optics (Russia)
Valery V. Kolosov, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 5396:
Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean

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