Nonlinear optical catastrophe from a smooth initial beam.
نویسندگان
چکیده
We observed an optical cusp diffraction catastrophe with an initially smooth but elongated Gaussian beam with an aspect ratio of 2:1. Nonlinear and linear diffraction regimes account for the near-field elliptical annulus and the far-field spatially complex astroid.
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ورودعنوان ژورنال:
- Optics letters
دوره 24 17 شماره
صفحات -
تاریخ انتشار 1999