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Conical diffraction intensity profiles generated using a top-hat input beam
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DOI：10.1364/OE.22.011290.png)
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Abstract
En 中文
The phenomenon of internal conical diffraction has been studied extensively for the case of laser beams with Gaussian intensity profiles incident along an optic axis of a biaxial material. This work presents experimental images for a top-hat input beam and offers a theoretical model which successfully describes the conically diffracted intensity profile, which is observed to differ qualitatively from the Gaussian case. The far-field evolution of the beam is predicted to be particularly interesting with a very intricate structure, and this is confirmed experimentally. (C) 2014 Optical Society of America
Keywords:
LIGHT-BEAMS
REFRACTION
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