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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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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.