Propagation dynamics of ultraslow light pulses in a Pr3+: Y2SiO5 crystal

We investigate in theory the ultraslow light propagation and reversible light storage in a Pr3+: Y2SiO5 crystal driven into the electromagnetically induced transparency regime. By carefully adjusting several critical parameters, we can well recover relevant experimental results in terms of the time delay, the energy loss, the pulse width, and the retrieval efficiency of the transmitted signal. Our results depend on full numerical solutions of the coupled Maxwell-Liouville equations with the inhomogeneous broadenings properly dealt with.