CHEMICALLY PUMPED LASER SYSTEM.

Abstract

Efforts to obtain reliable performance of the chemically pumped laser were continued. Consequently evaluation of the coaxial coupling geometry was initiated during this reporting period. The axial extent of the reflected shock heated xenon, which serves as the pump source, was determined from measurements of relative radiation intensity and found to be significantly less than that calculated from analysis of the ideal shock tube flow. The reduction of length of the hot gas slug has been attributed to excessive mixing between driver and driven gases. Further evidence in support of this explanation will be obtained from spectroscopic observation of the shocked gas flow. Modifications which can be expected to stretch the length of the gas sample have been examined analytically and several, involving area changes in the shock tube, will be studied experimentally.

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1966
Accession Number
AD0481531

Entities

People

  • A. Laderman
  • S. Byron
  • W. Kuby
  • W. Lawrence

Tags

DTIC Thesaurus Topics

  • Couplings
  • Flow
  • Gas Flow
  • Gases
  • Geometry
  • Hot Gases
  • Intensity
  • Measurement
  • Observation
  • Radiation
  • Shock Tubes
  • Test And Evaluation
  • Tubes

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers