Investigation of a high-pressure continuously tunable CO/sub 2/ laser
Journal Article
·
· Sov. J. Quant. Electron. (Engl. Transl.); (United States)
An experimental and theoretical investigation was made of the frequency tuning of a pulse electron-beam-controlled CO/sub 2/ laser. A continuous tuning was achieved in a range of approx.45 cm/sup -1/ and the energy per pulse was approx.0.1 J when the pressure in the laser mixture was 5 atm. The frequency pulling of the multimode-structure envelope of the gain lines was observed. This pulling was practically eliminated by inserting in the resonator a lens telescope or a prism, which increased the diameter of the beam on a diffraction grating. The spectral width of the radiation was approx.0.05 cm/sup -1/. The results of a theoretical calculation of the tuning characteristics of the laser were close to the experimental data. A continuously tunable CO/sub 2/ laser was used in resonant excitation of visible luminescence in ethylene and optoacoustic detection of deuterated molecules HDS and NH/sub 2/D in natural isotopic mixtures of hydrogen sulfide and ammonia. (AIP)
- Research Organization:
- Institute of Spectroscopy, Academy of Sciences of the USSR, Akademgorodok, Moscow Province
- OSTI ID:
- 7176149
- Journal Information:
- Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 6:5; ISSN SJQEA
- Country of Publication:
- United States
- Language:
- English
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