Photon lifetime in a cavity containing a slow-light medium
release_sgu6aruqerg2jjbvzomdwhvroe
by
Thomas LauprĂȘtre,
Rupamanjari Ghosh,
Fabien Bretenaker
2011
Abstract
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 (EIT) regime, in which light
propagates at a group velocity of the order of 10000 m/s. 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.
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1104.0158v1
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