ABSOLUTE FREQUENCY MEASUREMENTS OF THE CO2 cw LASER AT 28 THz (10.6μm)
- 15 March 1970
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 16 (6), 251-253
- https://doi.org/10.1063/1.1653183
Abstract
The two highest cw absolute frequency measurements as yet reported are described. Frequencies of the P(18) and P(20) 10.6‐μm lines from a cwCO2 laser were found to be 28.359800 THz and 28.306251 THz±0.000025 THz, respectively. The frequencies were measured by beating each of these lines with 3.8‐THz (78μm) and 10.7‐THz (28μm) radiation from a water vapor laser and a 26‐ to 28‐GHz klystron in a tungsten‐on‐nickel point contact diode.Keywords
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