Download or read book Propagation of Finite Cross-Section Laser Beams in Sea Water written by Hal T. Yura and published by . This book was released on 1972 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: An expression is derived for mean irradiance distribution of a finite cross-section laser beam propagating in sea water. The effects of large-scale refractive variations on beam quality due to temperature and salinity fluctuations and the scattering of suspended biological particles with indices of refraction close to that of sea water are included. The analysis is general; it is valid in both the near and the far field of the laser transmitting aperture and also for an arbitrary complex disturbance in the exit pupil of the transmitting aperture. Analytic results are presented for the beam pattern and spot size of a Gaussian laser beam. (Author).