Vol. 29, issue 03, article # 2

Abstract:

Temporal dynamics of maximum intensity and laser power in a finite-size aperture of the focused radiation at a wavelength of 10.6 microns under thermal self-action in a clear turbulent atmosphere is analyzed by means of computer simulation. Propagation of Gaussian beams along up to 160 m path is considered. It is shown that under strong turbulence conditions there are time intervals in which the maximum intensity in the middle of the path of a tightly focused beam is greater than in the focal plane at the end of the path.

Keywords:

CO2 laser, IR radiation, thermal self-action, thermal blooming, turbulent atmosphere

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