Slow light of an amplitude modulated Gaussian pulse in electromagnetically induced transparency medium

Details Slow light of an amplitude modulated Gaussian pulse in electromagnetically induced transparency medium Slow light of an amplitude modulated Gaussian pulse in electromagnetically induced transparency medium

2009-01-20

arxiv.org/abs/0901.2997v1

Physics

Quantum Physics

8 pages, 4 figures

Scientific paper

The slow light effects of an amplitude modulated Gaussian (AMG) pulse in a cesium atomic vapor are presented. In a single-$\Lambda$ type electromagnetically induced transparency (EIT) medium, more severe distortion is observed for an AMG pulse than a Gaussian one. Using Fourier spectrum analysis, we find that the distortion, as well as the loss, is dominantly caused by linear absorption than dispersion. Accordingly, a compensation method is proposed to reshape the slow light pulse based on the transmission spectrum. In addition, we find a novel way to obtain simultaneous slow and fast light.

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