Slow and superluminal pulse propagation in temporal nonlocal response Kerr media with a CW pump

Slow and superluminal light propagation in temporal nonlocal response Kerr media has been investigated. The group velocity, as low as tens of few centimeters per second, can be easily obtained by tuning the wavelength of a continuous-wave (CW) laser in a typical Kerr material, such as in alexandrite.