期刊
OPTICS EXPRESS
卷 19, 期 16, 页码 15560-15573出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.015560
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资金
- Natural Sciences and Engineering Research Council of Canada
- Canadian Foundation for Innovation
- Ontario Institute of Technology
- McMaster University
A Gaussian beam propagating in a photopolymer undergoes self-phase modulation to form diffraction rings and then transforms into a single ring, which in turn ruptures into a necklace of stable self-trapped multimode filaments. The transitions of the beam between the three distinct nonlinear forms only occur at intensities where the beam-induced refractive index profile in the medium slowly evolves from a Gaussian to a flattened Gaussian. (C) 2011 Optical Society of America
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