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References (5)
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Excitation Mechanisms and Current Dependence of Population Inversion in He-Ne LasersApplied Physics Letters, 3
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- Publisher
- SPIE
- Copyright
- Copyright © 1996 American Institute of Physics
- ISSN
- 0091-3286
- eISSN
- 1560-2303
- DOI
- 10.1117/1.601029
- Publisher site
- See Article on Publisher Site
Abstract
We propose a method for the calculus of the population inversion between laser energy levels in a helium‐neon gaseous mixture by measuring the resonance Faraday rotation. The possibility to study the population inversion versus different characteristic parameters of the electric discharge or of the gaseous mixture is offered. The results are useful for choosing the optimal conditions in realization of population inversion and enable study of the collisions between the atoms, ions, and electrons that are responsible for atomic excitation and de‐excitation of different energy levels. In conclusion, the optimal conditions for the occurrence of the population inversion are coincident with those proposed empirically in literature ( p He / p Ne =5 and the total pressure about 0.5 Torr). © 1996 Society of Photo−Optical Instrumentation Engineers.
Journal
Optical Engineering – SPIE
Published: May 1, 1996