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Pulse Normalisation in Slow-Light Media

Bruno Macke·Bernard Ségard
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Abstract

We analytically study the linear propagation of arbitrarily shaped light-pulses through an absorbing medium with a narrow transparency-window or through a resonant amplifying medium. We point out that, under certain general conditions, the pulse acquires a nearly Gaussian shape, irrespective of its initial shape and of the spectral profile of the line. We explicitly derive in this case the pulse parameters, including its skewness responsible for a deviation of the delay of the pulse maximum from the group delay. We illustrate our general results by analysing the slow-light experiments having demonstrated the largest fractional pulse-delays

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Bruno Macke, Bernard Ségard. 2006-01-09. Pulse Normalisation in Slow-Light Media. https://doi.org/10.1103/physreva.73.043802

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