Observation of Dicke Superradiance in Optically Pumped HF Gas

作者：N. Skribanowitz, Irving P. Herman, J. C. MacGillivray, Michael S. Feld · 发表于：Physical Review Letters · 年份：1973 · DOI：10.1103/physrevlett.30.309 · 被引用次数：775 · 研究领域：Spectroscopy and Laser Applications、Quantum optics and atomic interactions、Laser-Matter Interactions and Applications

We have found that room-temperature HF gas at millitorr pressures, optically pumped to produce a total inversion at a rotational transition in the $v=1$ vibrational state, emits a superradiant pulse with ringing after a considerable delay (\ensuremath{\sim} microseconds). A semiclassical analysis shows that for a high-gain system the pulse evolution is determined by a single parameter ${\ensuremath{\tau}}_{R}$, and that inhomogeneous broadening is unimportant. Close agreement between theory and experiment is obtained.