Accession Number:

AD0779743

Title:

Vibrational Nonequilibrium in Carbon Dioxide Electric Discharge Lasers,

Descriptive Note:

Corporate Author:

STANFORD UNIV CALIF INST FOR PLASMA RESEARCH

Personal Author(s):

Report Date:

1974-01-01

Pagination or Media Count:

150.0

Abstract:

An experimental and theoretical investigation of the vibrational nonequilibrium in a CO2 - N2 - He electric discharge was performed under strong nonequilibrium conditions. Measurements of 9.6 and 10.6 micron gain were made in a laser amplifier tube using a tuneable, spectrally pure CO2 laser and a double-beam diagnostic system. The vibrational temperature for each of the three vibrational modes of CO2 was determined experimentally from a knowledge of gain in both laser bands and from a direct measurement of the vibrational temperature of the asymmetric mode using a band reversal scheme. The transition rate and optical cross sections for the 10.6 micron band and the 9.6 micron band were measured. A theoretical performance prediction of laser gain and vibrational temperatures was made using all significant energy transfer processes.

Subject Categories:

  • Lasers and Masers
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE