Investigation Of Spontaneous Lines From Upper And Lower Levels Of He-Ne Laser Line 632.8 nm Excited In Hollow Cathode

S. S. Cartaleva; S. V. Gateva; V. J. Stefanov

doi:10.1117/12.942421

18 January 1985 Investigation Of Spontaneous Lines From Upper And Lower Levels Of He-Ne Laser Line 632.8 nm Excited In Hollow Cathode

S. S. Cartaleva, S. V. Gateva, V. J. Stefanov

Author Affiliations +

Proceedings Volume 0473, Symposium Optika '84; (1985) https://doi.org/10.1117/12.942421
Event: Symposium Optika '84, 1984, Budapest, Hungary

Abstract

It has been found that the 632.8 nm and 1.15 - 1.20 μm He-Ne laser generations are more effective in Cu hollow cathode than in Al one.The purpose of this research was to find whether the higher efficiency of the copper hollow cathode He-Ne laser at 632.8 nm (3S2- 2P4) transition is due to higher upper laser level population or depopulation of the lower laser level. To compare the population of the laser levels in Cu and Al cathodes the intensities of some Ne spontaneous lines and reabsorbtion of Ne and He lines finishing on metastable levels have been investigated.The main results are that the upper laser and 4S0 He metastable levels are more populated in hollow Cu cathode than in Al one and there is no significant difference between the low laser neither between the 1s Ne metastable level populations in Cu and Al hollow cathodes.

Citation Download Citation

S. S. Cartaleva, S. V. Gateva, and V. J. Stefanov "Investigation Of Spontaneous Lines From Upper And Lower Levels Of He-Ne Laser Line 632.8 nm Excited In Hollow Cathode", Proc. SPIE 0473, Symposium Optika '84, (18 January 1985); https://doi.org/10.1117/12.942421

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