Computer modelling of copper vapour lasers

Robert J. Carman*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

A comprehensive and self-consistent computer model has been developed to simulate the discharge kinetics and lasing characteristics of a copper vapour laser(CVL) for typical operating conditions. Using a detailed rate-equation analysis, the model calculates the spatio-temporal evolution of the population densities of eleven atomic and ionic copper levels, four neon levels, and includes seventy collisional and radiative processes, in addition to radial particle transport. A comprehensive set of electron impact cross-sections for Cu I has been used from recent detailed calculations . For the first time in the modelling of CVL kinetics, a time dependent two-electron group model, based on a bi-Maxwellian electron energy distribution function, has been used to evaluate the energy partitioning between the copper vapour and the neon buffer gas. The behaviour of the plasma kinetics are dominated by the neon buffer gas, has also been modelled. The long-term evolution of the plasma is taken into account by integrating the set of coupled rate equations describing the discharge and electrical circuit through multiple excitation/ afterglow cycles to achieve temporal self-consistency. Results from the model have been compared to experimental date for a narrow bore (Φ=1.8cm) CVL operating under optimum conditions.

Original languageEnglish
Title of host publicationIEEE Lasers and Electro-Optics Society Annual Meeting, LEOS '93
Subtitle of host publicationProceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages749-750
Number of pages2
ISBN (Print)0780312635
DOIs
Publication statusPublished - 1993
Event6th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society (LEOS 93) - San Jose, United States
Duration: 15 Nov 199318 Nov 1993

Conference

Conference6th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society (LEOS 93)
CountryUnited States
CitySan Jose
Period15/11/9318/11/93

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