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Optics Letters

Optics Letters


  • Vol. 7, Iss. 6 — Jun. 1, 1982
  • pp: 276–278

Continuous-wave self-focusing and self-trapping of light in artificial Kerr media

A. Ashkin, J. M. Dziedzic, and P. W. Smith  »View Author Affiliations

Optics Letters, Vol. 7, Issue 6, pp. 276-278 (1982)

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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.

© 1982 Optical Society of America

Original Manuscript: February 2, 1982
Published: June 1, 1982

A. Ashkin, J. M. Dziedzic, and P. W. Smith, "Continuous-wave self-focusing and self-trapping of light in artificial Kerr media," Opt. Lett. 7, 276-278 (1982)

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