Accession Number : ADA181122

Title :   Outstanding Problems in High Power Pulsed Laser/Target Interactions.

Descriptive Note : Technical rept. 28 Sep 83-31 Jul 84,

Corporate Author : S-CUBED LA JOLLA CA

Personal Author(s) : Freeman,B E ; Patnaik,P C

PDF Url : ADA181122

Report Date : 26 Aug 1986

Pagination or Media Count : 63

Abstract : An investigation was made of the interaction of a high-power laser beam with a target in air. A laser-supported radiation wave in the air is predicted. Models of this process were developed. An analytic model of the steady-state was compared with a transient numerical model using a one-dimensional radiation/hydrodynamic code. Comparisons with data indicate agreement for Nd-glass frequency laser radiation, but discrepancies for CO2 laser frequency. Speculations are made about the source of the discrepancy. Keywords: Laser beam in air: Laser-supported radiation wave; Laser-target interaction.

Descriptors :   *LASER TARGET INTERACTIONS, MATHEMATICAL MODELS, LASER BEAMS, HYDRODYNAMIC CODES, ONE DIMENSIONAL, RADIATION, HIGH POWER, LASERS, RADIATION, WAVES, FREQUENCY, GLASS LASERS, NEODYMIUM LASERS, TRANSIENTS, PULSED LASERS, AIR, LASER SPOTS, PLASMAS(PHYSICS), RADIATIVE TRANSFER, HIGH TEMPERATURE

Subject Categories : Lasers and Masers
      Plasma Physics and Magnetohydrodynamics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE