Operating Parameters of dc‐Excited He‐Ne Gas Lasers

Autor:	R. L. Field
Rok vydání:	1967
Předmět:	Materials science Gas laser Capillary action Extrapolation Electron Partial pressure Laser law.invention law Ionization Physics::Atomic Physics Atomic physics Total pressure Instrumentation
Zdroj:	Review of Scientific Instruments. 38:1720-1722
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1720653
Popis:	The output power of the 6328 A helium‐neon gas laser has been investigated as a function of capillary diameter, total pressure, and He‐Ne partial pressure ratio at optimum dc discharge currents. The optimum value of pTd (total pressure × capillary diameter) remains constant, and the scaling laws, power ∝ d, optimum current ∝ d are approximately satisfied for the four diameters investigated. The results suggest that optimum laser output is always achieved at the same value of electron mean energy and at a constant fractional ionization. This study permits a clearer understanding of the relationship between various helium‐neon discharge parameters and the 6328 A laser output power, and by extrapolation allows the prediction of optimum gas fill for other capillary diameters. These results should also be useful in analyzing the effect of gas cleanup on tube life.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ab3dd89dfc5f204089ec8fade0ed700 https://doi.org/10.1063/1.1720653 Zobrazit plný text záznamu