| Numéro |
J. Phys. Colloques
Volume 41, Numéro C9, Novembre 1980
Third International Symposium on Gas-Flow and Chemical Lasers
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|---|---|---|
| Page(s) | C9-217 - C9-223 | |
| DOI | https://doi.org/10.1051/jphyscol:1980928 | |
Third International Symposium on Gas-Flow and Chemical Lasers
J. Phys. Colloques 41 (1980) C9-217-C9-223
DOI: 10.1051/jphyscol:1980928
Institut für Technische Physik, DFVLR, D-7000 Stuttgart 80, Fed. Rep. Germany.
J. Phys. Colloques 41 (1980) C9-217-C9-223
DOI: 10.1051/jphyscol:1980928
CW CARBON MONOXIDE LASER WITH MICROWAVE EXCITATION IN THE SUPERSONIC FLOW
W. Schall, P. Hoffmann, W. Schock et H. HügelInstitut für Technische Physik, DFVLR, D-7000 Stuttgart 80, Fed. Rep. Germany.
Abstract
A new technique of efficiently coupling microwave energy into a supersonic gas flow is described. The stable self-sustained microwave discharge is applied to excite a cw CO gasdynamic laser. Electron densities well above the cut-off value have been achieved together with a reduced field strength within the discharge that is appropriate for efficient vibrational excitation. With an energy loading of 0.15 eV/CO a laser power of 340 Watts is obtained at an overall efficiency of 7 %. The effect of some additives on stability and laser performance is studied.