Manifestations of sub- and superluminality in filamented femtosecond laser pulse in fused silica

被引：20
作者：
Blonskyi, Ivan [1 ]
Kadan, Viktor [1 ]
Shpotyuk, Oleh [2 ]
Dmitruk, Igor [1 ]
机构：
[1] Natl Acad Sci Ukraine, Dept Photon Proc, Inst Phys, UA-03680 Kiev, Ukraine
[2] Sci Res Co Carat, UA-79031 Lvov, Ukraine
来源：
OPTICS COMMUNICATIONS | 2009年 / 282卷 / 09期
关键词：
Femtosecond laser pulses; Kerr effect; Filaments; Superluminality; TRANSFORMATION;
D O I：
10.1016/j.optcom.2009.01.056
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Filamented propagation of femtosecond laser pulses in fused silica is studied using microscopy of Femtosecond Time-resolved Optical Polarigraphy (FTOP). Both super- and subluminal translation of axial intensity maxima in a 100 fs time scale has been directly recorded. The observed spatio-temporal periodicity of the pulse shape in longitudinal and transversal directions is tentatively interpreted as two projections on X and Y axes of the same fringe pattern formed by the interference of the axial part of the beam and spontaneously generated conical beam. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：1913 / 1917
页数：5
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