Time-dependent propagation of high-energy laser beams through the atmosphere: II

Technical Report · Tue May 18 04:00:00 EDT 1976

DOI:https://doi.org/10.2172/7327935· OSTI ID:7327935

Fleck, Jr, J A; Morris, J R; Feit, M D

Various factors that can affect thermal blooming in stagnation zones are examined, including stagnation-zone motion, longitudinal air motion in the neighborhood of the stagnation zone, and the effects of scenario noncoplanarity. Of these effects, only the last offers any reasonable hope of reducing the strong thermal blooming that normally accompanies stagnation zones; in particular, noncoplanarity should benefit multipulse more than cw beams. The methods of treating nonhorizontal winds hydrodynamically for cw and multipulse steady-state sources are discussed. Pulse ''self-blooming'' in the triangular pulse approximation is discussed in the context of both single and multipulse propagation. It is shown that self-blooming and multipulse blooming cannot be treated independently.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7327935
• Report Number(s): UCRL-52071
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
654001 -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
LASER RADIATION
NEUTRAL-PARTICLE TRANSPORT
PHOTON TRANSPORT
PULSE TECHNIQUES
RADIATION TRANSPORT
RADIATIONS
TIME DEPENDENCE
WAVE PROPAGATION