Angle-resolved conical emission spectra from filamentation in a solid with an Airy pattern and a Gaussian laser beam

Filamentation dynamics in fused silica are investigated using an Airy pattern and a Gaussian laser beam. The angle-resolved conical emission spectra are measured and compared with the predictions of several models. Our experimental observations are consistent with the X-waves model in both cases. Th...

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Bibliographic Details
Published in:Optics letters 2016-09, Vol.41 (18), p.4305-4308
Main Authors: Gong, Cheng, Li, ZiXi, Hua, LinQiang, Quan, Wei, Liu, XiaoJun
Format: Article
Language:English
Subjects:
Airy patterns
Dynamic tests
Emission spectra
Evolution
Filaments
Fused silica
Gaussian beams (optics)
Laser beams
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Summary:Filamentation dynamics in fused silica are investigated using an Airy pattern and a Gaussian laser beam. The angle-resolved conical emission spectra are measured and compared with the predictions of several models. Our experimental observations are consistent with the X-waves model in both cases. This indicates that both laser beams spontaneously evolve into nonlinear X-waves and suggests a universal evolution of filaments in fused silica, regardless of the initial laser beam profile.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.41.004305