Parameters of a Light Bullet

The absolute parameters of a light bullet formed upon the filamentation of femtosecond mid-infrared radiation under the conditions of anomalous group velocity dispersion have been introduced. The duration and radius of the light bullet have been determined for the first time by analyzing the localiz...

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Bibliographic Details
Published in:JETP letters 2021-06, Vol.113 (12), p.787-793
Main Authors: Zaloznaya, E. D., Dormidonov, A. E., Kompanets, V. O., Chekalin, S. V., Kandidov, V. P.
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Femtosecond pulsed lasers
Group velocity
Infrared radiation
Light
Lithium fluoride
Localization
Longitudinal waves
Molecular
Optical and Plasma Physics
Optics and Laser Physics
Parameters
Particle and Nuclear Physics
Physics
Physics and Astronomy
Pulse propagation
Quantum Information Technology
Radiation
Solid State Physics
Spintronics
Wave packets
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Summary:The absolute parameters of a light bullet formed upon the filamentation of femtosecond mid-infrared radiation under the conditions of anomalous group velocity dispersion have been introduced. The duration and radius of the light bullet have been determined for the first time by analyzing the localization region of the light field obtained by solving the unidirectional pulse propagation equation. The evolution of the duration and radius of the region of the strong light field, peak power, and energy localization in the process of wave packet compression and formation of the light bullet during the filamentation of femtosecond laser radiation in LiF have been investigated. A unified method has been developed to determine the parameters of wave packets independent of their shape and width of the spectrum.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364021120146