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Slow and Fast Light (SL)

Slow Light with Persistent Spectral Hole Burning

R. N. Shakhmuratov, Alexander Rebane, Patrice Mégret, J. Odeurs

Published Jan 1, 2006• 1 citation
Publisher

Abstract

We consider short pulse propagating in a thin slab waveguide of optically dense persistent hole burning medium. Considerable slowing of group velocity occurs if narrow hole is created in advance in the inhomogeneous absorption spectrum.
DOI
10.1364/sl.2006.me8

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We consider the propagation of a Gaussian probe pulse in an absorptive, optically dense, two-level medium if a deep, persistent hole is created in advance by another pump field in the inhomogeneously broadened absorption spectrum of this medium. Both fields are well separated in time and the lifetime of the hole is assumed to be long with respect to the delay time between the pump and probe pulses. We show that the group velocity of the Gaussian probe pulse reduces several orders in magnitude, similarly to the reduction of the group velocity for the probe field in electromagnetically induced transparency (EIT) phenomena. In contrast to EIT, the width of the transparency window can be made very wide because of the saturation broadening of the hole.