Plasma kinetics issues for repetition rate scaling of kinetically enhanced copper vapour lasers

R. J. Carman*, R. P. Mildren, J. A. Piper, G. D. Marshall, D. W. Coutts

*Corresponding author for this work

Research output: Contribution to journalConference paper

10 Citations (Scopus)

Abstract

The performance of a small-scale KE-CVL operating at a pulse repetition rate of 50kHz has been investigated by comparing modelling results and experimental data to understand the underlying plasma kinetics issues for pulse repetition rate scaling. Comparison between initial modelling predictions and experimental results relating to the laser output power and the population densities of the metastable lower laser levels (Cu* 4s22D3/2,5/2) suggests that there is an additional de-excitation mechanism for the metastables in the KE-CVL. The most likely de-excitation mechanism involves vibrationally-excited H2(v) molecules Cu*2D+H2(v) => CuH+H. A rate-coefficient of 2×10-16m3s-1 is obtained by comparing modelling results with experimental data relating to the laser output power and the time-evolution of the axial 2D3/2 metastable population density.

Original languageEnglish
Pages (from-to)215-218
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4184
DOIs
Publication statusPublished - 2001

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