Observation of Subnatural Linewidth in NaLines
- 21 September 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 47 (12), 825-827
- https://doi.org/10.1103/physrevlett.47.825
Abstract
Subnatural linewidth in the optical transitions of Na lines was directly observed with use of phase switching of the optical field and gating of the photon counter. A linewidth as narrow as 4.5 MHz compared with the natural width of 10 MHz was obtained.
Keywords
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