The diffraction of pulsed beams of light is formulated as an anomalously dispersive phenomenon. In a dispersive material, the effects of material group-velocity dispersion and diffraction on pulsed beam propagation can mutually cancel if the transverse profile of the pulse is suitably chosen.
© 2001 Optical Society of America
(050.1940) Diffraction and gratings : Diffraction
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(260.2030) Physical optics : Dispersion
(320.2250) Ultrafast optics : Femtosecond phenomena
Miguel A. Porras, "Diffraction-free and dispersion-free pulsed beam propagation in dispersive media," Opt. Lett. 26, 1364-1366 (2001)