Abstract A carbon dioxide laser operating in the high nitrogen partial pressure regime is reported. This regime requires a higher gas temperature to maintain an optimum output therefore cooling systems are not desirable. The output of this regime is comparable to that of the low nitrogen partial pressure.
K. H. Tsui, K. H. Tsui,
"Room temperature carbon dioxide lasers", Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 123034 (1 July 1990); doi: 10.1117/12.2294749; https://doi.org/10.1117/12.2294749