Optical Quadrupole Sum-Frequency Generation in Sodium Vapor
- 16 August 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 37 (7), 431-434
- https://doi.org/10.1103/PhysRevLett.37.431
Abstract
We show that second-order coherent sum-frequency generation via quadrupole transitions in metal vapors can be easily detected. The process is as strong as the allowed third-order processes. Our experimental results agree very well with theoretical predictions.Keywords
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