Periodic femtosecond filamentation in birefringent media

We report on the experimental observation of periodic modulation of the axial luminescence intensity along the femtosecond filament track in sapphire and crystal quartz. The physical reason for the modulation is a cyclic transformation of the polarization state of the light pulse traveling in birefr...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2015-09, Vol.120 (4), p.705-710
Main Authors: Blonskyi, I., Kadan, V., Shynkarenko, Y., Yarusevych, O., Korenyuk, P., Puzikov, V., Grin’, L.
Format: Article
Language:English
Subjects:
Cross sections
Crystals
Engineering
Femtosecond
Lasers
Luminescence
Modulation
Optical Devices
Optics
Phase (cyclic)
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Transformations
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Summary:We report on the experimental observation of periodic modulation of the axial luminescence intensity along the femtosecond filament track in sapphire and crystal quartz. The physical reason for the modulation is a cyclic transformation of the polarization state of the light pulse traveling in birefringent medium, caused by the phase raid between the ordinary and extraordinary rays, and different cross sections of multiphoton absorption for linear and circular polarizations.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-015-6186-x