Loiko, Y. V., Turpin, A. , Kalkandjiev, T.K., Rafailov, E.U. and Mompart, J. (2013) Generating a three-dimensional dark focus from a single conically refracted light beam. Optics Letters, 38(22), pp. 4648-4651. (doi: 10.1364/OL.38.004648) (PMID:24322096)
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Abstract
We report here the generation of a three-dimensional (3D) 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 3D dark focus with null intensity at the ring center is formed. We have performed experiments with a KGd(WO4)2 biaxial crystal, reporting the generation of a bottle beam in full agreement with our theoretical investigations.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Turpin, Dr Alejandro |
| Authors: | Loiko, Y. V., Turpin, A., Kalkandjiev, T.K., Rafailov, E.U., and Mompart, J. |
| College/School: | College of Science and Engineering > School of Computing Science College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Optics Letters |
| Publisher: | Optical Society of America |
| ISSN: | 0146-9592 |
| ISSN (Online): | 1539-4794 |
| Published Online: | 08 October 2013 |
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