Optimization of a femtosecond pulse self-compression region along a filament in air

Optimization of a femtosecond pulse self-compression region along a filament in air

We have identified the pulse self-compression region in a filament produced by 55 fs, 4 mJ, 805 nm radiation propagating in air without geometrical focusing. In our experiment the pulse self-compression region is attained by the propagation distance, where the shortest wavelength in the supercontinu...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Vol. 91; no. 1; pp. 35 - 43
Main Authors: Kosareva, O.G., Panov, N.A., Uryupina, D.S., Kurilova, M.V., Mazhorova, A.V., Savel’ev, A.B., Volkov, R.V., Kandidov, V.P., Chin, S.L.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer-Verlag 01-04-2008
Subjects:
Compressing
Engineering
Filaments
Focusing
Lasers
Optical Devices
Optics
Optimization
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Spectra
Tracking
Wave propagation
White light
Propagation Distance
Kerr Nonlinearity
Pulse Compression
Blue Wing
Spectral Phase
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Summary:We have identified the pulse self-compression region in a filament produced by 55 fs, 4 mJ, 805 nm radiation propagating in air without geometrical focusing. In our experiment the pulse self-compression region is attained by the propagation distance, where the shortest wavelength in the supercontinuum blue wing reaches a minimum, and the growing conversion efficiency to white light has a large gradient. Numerical tracking of the pulse along the filament shows a single-peak 9 fs pulse with a flat spectral phase at the optimum compression distance.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-008-2959-9