IDENTIFICATION OF WATER-VAPOR LASER LINES
- 1 March 1968
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 12 (5) , 170-173
- https://doi.org/10.1063/1.1651939
Abstract
Twenty five laser lines in water vapor are identified as transitions between known vibration‐rotation levels. The mechanism is discussed: The initiating factor is a weak perturbation involving close resonance between levels of the bending overtone and the stretching fundamentals. Three resonances account for most of the strongest lines: 020, 550 ↔ 100, 514, at 4050 cm−1, 020, 661 ↔ 001, 633, at 4408 cm−1, and 020, 844 ↔ 100, 808 at 4387 cm−1 above the zero level. The 2527952.8 MHz line is assigned to 001, 642 → 020, 661.Keywords
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