Showing papers on "Slow light published in 1989"
Proceedings Article•
24 Apr 1989TL;DR: One of the important parameters in the design of high power lasers is the nonlinear refractive index n2 defined by the expression n = n0 + n2(E2), where n 0 is the familiar linear index and E is the optical electric field.
Abstract: One of the important parameters in the design of high power lasers is the nonlinear refractive index n2 defined by the expression n = n0 + n2(E2), where n0 is the familiar linear index and E is the optical electric field.
17 citations
TL;DR: In this paper, the propagation velocity of a wave packet applicable to anomalous dispersion media is derived using the saddle point method, including the effects of both packet deformation and spreading, and coincides with the group velocity at the normal dispersion limit.
Abstract: The propagation velocity of a wave packet applicable to anomalous dispersion media is newly derived using the saddle point method. This velocity includes the effects of both packet deformation and spreading, and coincides with the group velocity at the normal dispersion limit. A method to determine the saddle point frequency from a given initial condition is presented and the trajectory of a wave packet incident on a semi-infinite medium is obtained by integrating the new propagation velocity. It reveals that the propagation of a wave packet in anomalous dispersion media is characterized by three regions, i.e. backward, fast and slow propagation regions. The difficulty of group velocity in anomalous dispersion media is overcome.
8 citations