The possibility of producing a population inversion in a hydrogen plasma in the case of charge exchange in cesium
Abstract
The present study examines the feasibility of a laser that emits at the Lyman-alpha wavelength (121.6 nm) and operates on the principle of charge exchange in cesium vapor. The parameters of the hydrogen plasma and the cesium target are determined for which the generation of UV radiation is possible. It is shown that in order to produce this type of charge-exchange laser it is necessary to have a well-formed cesium target with an atom density of 10 to the 16th to 10 to the 17th per cu cm and a hydrogen plasma jet with a concentration of 10 to the 13th per cu cm, a velocity of (3-5) x 10 to the 7th cm/s, and a degree of ionization of almost 100 percent. Under these conditions it is possible to achieve lasing with a gain coefficient of about 0.5 per cm in a layer about 0.22 mm thick.
- Publication:
-
Zhurnal Prikladnoi Spektroskopii
- Pub Date:
- October 1981
- Bibcode:
- 1981ZhPS...35..600B
- Keywords:
-
- Cesium Vapor;
- Charge Exchange;
- Hydrogen Plasma;
- Laser Plasma Interactions;
- Metal Vapor Lasers;
- Population Inversion;
- Plasma Accelerators;
- Plasma Jets;
- Power Gain;
- Ultraviolet Lasers;
- Lasers and Masers