Light-pulse propagation in angularly dispersive systems is explored in the context of a center-of-mass definition of energy arrival time. In this context the time of travel is given by a superposition of group delays weighted by the spectral content of the pulse. With this description the time of travel from one point to the next for a pulse is found to be completely determined by the spectral content, independent of the state of chirp. The effect of sensor orientation on arrival time is also considered.
© 2001 Optical Society of America
M. Ware, W. E. Dibble, S. A. Glasgow, and J. Peatross, "Energy flow in angularly dispersive optical systems," J. Opt. Soc. Am. B 18, 839-845 (2001)