Accession Number:

AD0748809

Title:

Effects of Turbulence Instabilities on Laser Propagation

Descriptive Note:

Quarterly progress rept. no. 4 (Final), 9 Mar-8 Jun 1972

Corporate Author:

RCA LABS PRINCETON NJ

Personal Author(s):

Report Date:

1972-07-01

Pagination or Media Count:

53.0

Abstract:

The report reviews the contents of the three Quarterly Reports under the contract effort terminating on 8 June 1972. This discussion updates that work by comparing it with recent other work and new data. The basic results deal with the fluctuating properties of the focal area of a focused laser beam in turbulent air, viz., the average focal area for horizontal propagation, an extension of 1 to slant-path geometry, and the power spectrum of the focal- spot radius. The second part, self-contained, is a new theory of plane-wave irradiance scintillation. It contains the prediction that the log-amplitude variance is proportional to L to the minus 12 power C sub n sub 2 to the minus 16 power in the saturation regime.

Subject Categories:

  • Lasers and Masers
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE