Backward and forward FIR emission characteristics from D2O in both Raman and laser regimes
Abstract
Laser emission spectra for the 66 and 116 micron D2O lines pumped by the 9.66 micron P32 CO2 line in both backward and forward directions have been obtained. Forward spectra are predominantly Raman dominated, except for a narrow pressure region near 2 torr where the 116 micron line is laser-like. Backward spectra appear to be entirely laser-like showing narrower bandwidths and constant frequency. The shape of the pulse outlines in different directions and pressures confirm the findings of the emission spectra. Total FIR energy emission is also asymetric, being significantly greater in the forward direction.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- March 1983
- DOI:
- 10.1109/JQE.1983.1071844
- Bibcode:
- 1983IJQE...19..256A
- Keywords:
-
- Far Infrared Radiation;
- Heavy Water;
- High Power Lasers;
- Infrared Lasers;
- Raman Spectra;
- Water Masers;
- Carbon Dioxide Lasers;
- Emission Spectra;
- Laser Pumping;
- Pulsed Lasers;
- Spectral Line Width;
- Stimulated Emission;
- Tea Lasers;
- Water Vapor;
- Lasers and Masers