Abstract
We investigate the evolution of anomalous hollow Gaussian beams in strongly nonlocal nonlinear media under the off-waist incident condition. We obtain analytic expressions of the beam propagation, the on-axis intensity, and the beam width and curvature. We perform some numerical simulations to illustrate the propagation properties of anomalous hollow Gaussian beams. The results show that, under the off-waist incident condition, the beam evolution is always periodic, whatever the input power is, being different from that under the on-waist incident condition. We discuss the influences of the input power and the departure distance on the propagation properties and present the physical reasons.
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Manuscript submitted by the author in English first on October 15, 2015 and in final form on February 16, 2016.
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Yang, Z. Evolution of Anomalous Hollow Gaussian Beams in Strongly Nonlocal Nonlinear Media Under the Off-Waist Incident Conditions. J Russ Laser Res 37, 172–179 (2016). https://doi.org/10.1007/s10946-016-9557-9
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DOI: https://doi.org/10.1007/s10946-016-9557-9