Broadening coefficients for the P(20) CO2 laser transition
- 15 November 1974
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 25 (10) , 609-611
- https://doi.org/10.1063/1.1655330
Abstract
Accurate line‐shape and linewidth measurements have been made on the P(20) 10.6‐μm CO2 laser transition using optoacoustic spectroscopy and a tunable waveguide CO2 laser. The absorption line shape is shown to be accurately represented by a Voigt line shape and the measured broadening coefficients are γCO2=7.61±0.10, γN2=5.58±0.20, and γHe=4.88±0.18 MHz/Torr, all measured at 298°K.Keywords
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