Continuous-wave self-focusing and self-trapping of light in artificial Kerr media
- 1 June 1982
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 7 (6) , 276-278
- https://doi.org/10.1364/ol.7.000276
Abstract
Artificial Kerr media made from liquid suspensions of submicrometer particles were used as a new type of nonlinear medium for observing cw self-focusing and self-trapping of laser beams. Self-trapping of TEM00-mode beams and higher-order TEM01- and TEM01*-mode beams were investigated. Saturation-free operation down to filament diameters of ~2 μm was observed. The independence of the critical power for self-trapping on the beam diameter in the unsaturated regime was confirmed for the first time to our knowledge. Values of the nonlinear coefficient were determined for a range of particle diameters from 0.038 to 0.234 μm.Keywords
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