A generalization of type 3 ultrashort pulses (also known as pulse beams or isodiffracting pulses) is introduced. The Bessel beam form of this generalized beam consists of pulses that propagate in free space, without spreading, with a velocity that can be less than that of light. A model spectral distribution that is zero outside a finite range is investigated.
© 2002 Optical Society of America
(140.7090) Lasers and laser optics : Ultrafast lasers
(260.1960) Physical optics : Diffraction theory
(270.5530) Quantum optics : Pulse propagation and temporal solitons
(280.3640) Remote sensing and sensors : Lidar
(320.5550) Ultrafast optics : Pulses
Colin J. R. Sheppard, "Generalized Bessel pulse beams," J. Opt. Soc. Am. A 19, 2218-2222 (2002)