Pulsed far infrared lasers
Abstract
The paper reviews the criteria for and output expectations of optically pumped FIR lasers operating on pure rotational transitions. Attention is then given to some typical approaches used to generate intense FIR (e.g., superfluorescence, and cavity operation) and a discussion is presented of recent observations of stimulated Raman emission and Dicke superradiance. The basic optical pumping technique has been shown to result in near Manley-Rowe limited generation of FIR with resulting good transverse and temporal beam characteristics. Spectral gaps may be filled with the use of isotopic sources of known molecules, isotopic CO2 sources, N2O sources and possibly with the use of new lasing species (i.e., light symmetric and asymmetric top molecules).
- Publication:
-
Far infrared/submillimeter wave: Technology/applications
- Pub Date:
- January 1977
- DOI:
- 10.1117/12.955433
- Bibcode:
- 1977SPIE..105...11D
- Keywords:
-
- Far Infrared Radiation;
- Infrared Lasers;
- Optical Pumping;
- Pulsed Lasers;
- Carbon Dioxide Lasers;
- Cavity Resonators;
- Laser Outputs;
- Molecular Rotation;
- Raman Spectra;
- Submillimeter Waves;
- Lasers and Masers