Generating a three-dimensional dark focus from a single conically refracted light beam

Yu V. Loiko, A. Turpin, T. K. Kalkandjiev, E. U. Rafailov, J. Mompart

Research output: Contribution to journalArticleResearchpeer-review

23 Citations (Scopus)

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-WO42 biaxial crystal, reporting the generation of a bottle beam in full agreement with our theoretical investigations. © 2013 Optical Society of America.
Original languageEnglish
Pages (from-to)4648-4651
JournalOptics Letters
Volume38
DOIs
Publication statusPublished - 15 Nov 2013

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