Accession Number : AD0716743

Title :   Vibrational Population Inversions Within Normal Shock Waves in CO2-N2-HE Mixtures.

Descriptive Note : Final rept.,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Anderson,John D. , Jr. ; Madden,Michael T. ; Piper,Carolyn H.

Report Date : 07 OCT 1970

Pagination or Media Count : 40

Abstract : Numerical solutions are given for vibrational population inversions created in CO2-N2-He mixtures due to shock wave heating of a cold gas. The results indicate that population inversions between the (040) and (001) energy levels of CO2 and, to a lesser degree, between the (200) and (001) levels, can be created in the vibrational nonequilibrium flow behind a normal shock front. The properties of these inversions as a possible laser medium are assessed; the results indicate that the laser properties of this shock-induced nonequilibrium flow are not as promising as those of lasers operating on the principle of rapid expansions. (Author)

Descriptors :   (*GAS LASERS, CARBON DIOXIDE), (*CARBON DIOXIDE, EXCITATION), SHOCK WAVES, ELECTRON TRANSITIONS, MOLECULAR ENERGY LEVELS, VIBRATION

Subject Categories : Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE