Accession Number:

AD0748991

Title:

A Numerical Calculation of Thermal Blooming of Pulsed, Focused Laser Beams,

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

• Ulrich,Peter B.

Report Date:

1971-12-30

Pagination or Media Count:

21.0

Abstract:

The report summarizes the development of a computer program which solves the problem of propagation of pulsed, focused laser beams in a gas. The code includes the effects of the absorbing medium by self-consistent inclusion of the detailed hydrodynamic processes. The report presents a description of the transformations of the relevant equations, a description and stability analysis of the algorithms used, a summary of the checks on accuracy and internal consistency both of the wave optics and the hydrodynamics, comparison with analytic theories, and presentation of an example of results for a typical case of interest. Author

Descriptors:

• (*COHERENT RADIATION
• ATMOSPHERE MODELS)
• (*LIGHT TRANSMISSION
• COMPUTER PROGRAMS)
• MATHEMATICAL MODELS
• HYDRODYNAMICS
• LIGHT PULSES
• PROPAGATION
• PARTIAL DIFFERENTIAL EQUATIONS

Subject Categories:

• Atmospheric Physics
• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE