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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

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Operating efficiencies in pulsed carbon-dioxide lasers

Smith, A.L.S. and Mellis, J. (1982) Operating efficiencies in pulsed carbon-dioxide lasers. Applied Physics Letters, 41 (11). pp. 1037-1039. ISSN 0003-6951

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Abstract

Computer models of the CO2‐N2‐He laser system usually predict that 20%-33% of the discharge energy should be available as radiation output. Using a comprehensive kinetics model to study vibrational temperatures and stored energies, we find a deterioration in laser efficiency with increasing input energy, due to electron superelastic losses during the excitation pulse. Experimental observations support the calculated vibrational temperatures and likewise our predicted 8%-12% yield efficiency at optimum excitation is in good agreement with the values realized in working lasers.