Paper
5 March 2007 Dynamics of femtosecond laser pulses in air and in vacuum
Lubomir Kovachev, Ivaylo Tunchev
Author Affiliations +
Proceedings Volume 6604, 14th International School on Quantum Electronics: Laser Physics and Applications; 66041G (2007) https://doi.org/10.1117/12.726987
Event: 14th International School on Quantum Electronics: Laser Physics and Applications, 2006, Sunny Beach, Bulgaria
Abstract
We applied the method of the amplitude envelopes to investigate fsec optical pulses in air and in vacuum and and obtain new linear amplitude equations governing their propagation. The obtained amplitude equations for media with week dispersion as air and the amplitude equations in vacuum are equal with precision-propagation constants. The equations were solved, using the method of Fourier transforms. One unexpected new result is the relative stability of light bullets and light disks and the significant reduction of their diffraction enlargement in respect to conical Fresnel's diffraction. It is important to emphasize here the case of light disks, which turns out to be practically diffractionless over distances of more than hundred kilometers. When we investigate the propagation of optical pulses only with few optical periods in the frame of amplitude equations and in the frame of the wave equation, we obtain equal diffraction behavior for the amplitudes in both cases.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lubomir Kovachev and Ivaylo Tunchev "Dynamics of femtosecond laser pulses in air and in vacuum", Proc. SPIE 6604, 14th International School on Quantum Electronics: Laser Physics and Applications, 66041G (5 March 2007); https://doi.org/10.1117/12.726987
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Diffraction

Dispersion

Atmospheric propagation

Wave propagation

Femtosecond phenomena

Fourier transforms

Light wave propagation

RELATED CONTENT


Back to Top