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Performance of a CW double electric discharge for supersonic CO lasersThe results of an experimental investigation of a CW double discharge in supersonic CO mixtures are reported. Stable discharges in CO/N2 and CO/Ar mixtures, with a maximum energy loading of 0.5 eV/CO molecule, were achieved in a small-scale continuous-flow supersonic channel. Detailed measurements of the discharge characteristics were performed, including electrostatic probe measurements of floating potential and electron number density and spectroscopic measurements of the CO vibrational population distributions. The results of these measurements indicate that the vibrational excitation efficiency of the discharge is approximately 60%, for moderate levels of main discharge current. These experiments, on a small scale, demonstrate that the double-discharge scheme provides adequate vibrational energy loading for efficient CO laser operation under CW supersonic flow conditions.
Document ID
19800048145
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Stanton, A. C. (Aerodyne Research, Inc. Bedford, Mass., United States)
Hanson, R. K. (Aerodyne Research, Inc. Bedford, MA, United States)
Mitchner, M. (Stanford University Stanford, Calif., United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1980
Publication Information
Publication: Journal of Applied Physics
Volume: 51
Subject Category
LASERS AND MASERS
Funding Number(s)
CONTRACT_GRANT: NSF ENG-75-11156
CONTRACT_GRANT: NSG-2050
Distribution Limits
Public
Copyright
Other