Raman gain in 12-µm NH3 lasers
Abstract
The first known observation of lasing in NH3 on the aP(6, 2) transition at 12.26 microns is reported. Emission is obtained by pumping the aR(4, 2) line with the P(34) 9-micron CO2 laser line. The frequency offset between pump and absorption line center is 5.16 GHz. This pump-emission pair was chosen to minimize the effects of ac Stark shifts and population transfer and allows the Raman processes occurring in this type of optically pumped laser to be studied. It was confirmed that lasing takes place by a Raman process and good agreement between theory and experimental measurements of small-signal gain was obtained.
- Publication:
-
Optics Letters
- Pub Date:
- November 1982
- DOI:
- 10.1364/OL.7.000520
- Bibcode:
- 1982OptL....7..520M
- Keywords:
-
- Ammonia;
- Gas Lasers;
- Infrared Lasers;
- Laser Outputs;
- Power Gain;
- Raman Lasers;
- Carbon Dioxide Lasers;
- Laser Pumping;
- Pressure Broadening;
- Stark Effect;
- Ultrashort Pulsed Lasers;
- Lasers and Masers;
- RAMAN EFFECT;
- LASERS: INFRARED;
- INFRARED: FAR