Accession Number : AD0610616

Title :   COHERENT INFRARED LASER.

Descriptive Note : Semiannual technical summary rept. no. 3, 17 Jun 64-15 Jan 65,

Corporate Author : VARIAN ASSOCIATES PALO ALTO CALIF

Personal Author(s) : Muller,M. W. ; Sher,A.

Report Date : 15 JAN 1965

Pagination or Media Count : 14

Abstract : It is believed that in principle the Franck-Condon pumping technique can produce vibrational population inversions which are large enough to yield laser action. However, neither a molecule with a suitable metastable state, nor one which ionizes by a direct Franck-Condon process and has a vibrational dipole moment has been found. It is becoming clear that the mode of ionization of most molecules is not known. Experiments which can determine the mode of ionization of molecules are just now being undertaken in several laboratories. However, this type of experiment requires specialized equipment and techniques which are well beyond the scope of this contract. Work now under way elsewhere may lead to the identification of one or more molecular systems with suitable properties. When such an identification is made, it seems reasonable that work on a laser application might be resumed. (Author)

Descriptors :   (*LASERS, MOLECULAR PROPERTIES), (*INFRARED OPTICAL SYSTEMS, LASERS), MOLECULAR SPECTROSCOPY, VIBRATION, IONIZATION, ATOMIC ENERGY LEVELS, EXCITATION, PHOTONS, CATHODES, QUARTZ

Distribution Statement : APPROVED FOR PUBLIC RELEASE