Generating a three dimensional dark focus from a single conically refracted light beam
Optics
2015-02-25 v1
Abstract
We report here the generation of a three dimensional dark focus from a single focused monochromatic Gaussian beam that undergoes conical refraction when it propagates along one of the optic axes of a biaxial crystal. We study the resulting ring intensity pattern behind the crystal as a function of the ratio between the ring radius and the beam waist and derive the particular parameter values for which a three dimensional dark focus with null intensity at the ring center is formed. We have performed experiments with a biaxial crystal reporting the generation of a bottle beam in full agreement with our theoretical investigations.
Cite
@article{arxiv.1409.1853,
title = {Generating a three dimensional dark focus from a single conically refracted light beam},
author = {Yu. V. Loiko and A. Turpin and T. K. Kalkandjiev and E. U. Rafailov and J. Mompart},
journal= {arXiv preprint arXiv:1409.1853},
year = {2015}
}
Comments
5 pages, 4 figures