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Photon lifetime in a cavity containing a slow-light medium
T. Lauprêtre, C. Proux, , S. Schwartz, F. Goldfarb, F. Bretenaker
Published in
Volume: 36
Issue: 9
Pages: 1551 - 1553
We investigate experimentally the lifetime of the photons in a cavity containing a medium exhibiting strong positive dispersion. This intracavity positive dispersion is provided by a metastable helium gas at room temperature in the electromagnetically induced transparency regime, in which light propagates at a group velocity of the order of 104 m.s -1.The results definitely prove that the lifetime of the cavity photons is governed by the group velocity of light in the cavity and not its phase velocity. © 2011 Optical Society of America.
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