Physics – Optics
Scientific paper
2004-05-13
Journal of the Optical Society of America A21 (2004) 2455-2463
Physics
Optics
Replaced with a much larger and deepened version (the number of pages going on from 4 to 24; plus 4 Figures added)
Scientific paper
10.1364/JOSAA.21.002455
In this paper we analyze the properties of chirped optical X-shaped pulses propagating in material media without boundaries. We show that such ("superluminal") pulses may recover their transverse and longitudinal shape after some propagation distance, while the ordinary chirped gaussian-pulses can recover their longitudinal shape only (since gaussian pulses suffer a progressive spreading during their propagation). We therefore propose the use of chirped optical X-type pulses to overcome the problems of both dispersion and diffraction during the pulse propagation.
Hernandez-Figueroa Hugo E.
Recami Erasmo
Zamboni-Rached Michel
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