Anomalous transverse transformation of astigmatic four-petal Gaussian beams in isotropic nonlocal nonlinear media
Abstract
In this paper, the evolution dynamics of astigmatic four-petal Gaussian beams in isotropic nonlocal nonlinear media is investigated. A series of analytical expressions are derived to describe the beam evolution, the beam width, and the critical power. The anomalous transverse transformation is presented, i.e., an astigmatic four-petal Gaussian beam is compressed in one transverse direction and it is broadened in the other transverse direction. These evolution characteristics of astigmatic four-petal Gaussian beams are illustrated through some numerical simulations.
- Publication:
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Results in Physics
- Pub Date:
- September 2018
- DOI:
- 10.1016/j.rinp.2018.06.025
- Bibcode:
- 2018ResPh..10..320Y
- Keywords:
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- Isotropic nonlocal media;
- Astigmatic four-petal Gaussian beam;
- Anomalous transverse transformation