Accession Number:

ADA043123

Title:

Enhanced Backscatter with a Structured Laser Pulse.

Descriptive Note:

Memorandum rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

• Ripin,B. H.
• Young,F. C.
• Stamper,J. A.
• Armstrong,C. M.
• Decoster,R.

Report Date:

1977-07-01

Pagination or Media Count:

15.0

Abstract:

A large amplitude backscatter instability, consistent with Brillouin, occurs when a prepulse plasma is formed ahead of a high irradiance 10 to the 15th to 10 to the 16th power Wsq cm Nd-laser pulse. These results indicate that temporally structured laser pulses suggested for laser pellet implosion may also encounter large backscatter. Author

Descriptors:

• *PULSED LASERS
• *LASER BEAMS
• *PLASMA GENERATORS
• *NUCLEAR FUSION
• BACKSCATTERING
• INFRARED LASERS
• LIGHT PULSES
• PELLETS
• NEAR INFRARED RADIATION
• NEODYMIUM LASERS
• IMPLOSIONS

Subject Categories:

• Lasers and Masers
• Nuclear Physics and Elementary Particle Physics
• Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE