Free-space propagation of ultrashort pulses is investigated. Space–time couplings are reduced for a particular form of beams that is termed a pulse beam, or a type 3 pulsed beam. General conditions for the formation of pulse beams in the paraxial approximation are presented. The free-space propagation of spatially localized ultrashort laser pulses is investigated. This treatment is based on a particular pulsed form of the well-known Bessel beam, which is termed a Bessel pulse beam. The connections with focus wave modes and X waves are discussed.
© 2001 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, "Bessel pulse beams and focus wave modes," J. Opt. Soc. Am. A 18, 2594-2600 (2001)