| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1540418 | Optics Communications | 2009 | 5 Pages |
Abstract
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 100Â 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.
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Authors
Ivan Blonskyi, Viktor Kadan, Oleh Shpotyuk, Igor Dmitruk,