Polarization tailored novel vector beams based on conical refraction

TitlePolarization tailored novel vector beams based on conical refraction
Publication TypeJournal Article
Year of Publication2015
AuthorsTurpin, A, Loiko, YV, Peinado, A, Lizana, A, Kalkandjiev, TK, Campos, J, Mompart, J
JournalOptics Express
Volume23
Start Page5704
Issue5
KeywordsBirefringence, Crystal optics, Polarization
Abstract

Coherent vector beams with involved states of polarization (SOP) are widespread in the literature, having applications in laser processing, super-resolution imaging and particle trapping. We report novel vector beams obtained by transforming a Gaussian beam passing through a biaxial crystal, by means of the conical refraction phenomenon. We analyze both experimentally and theoretically the SOP of the different vector beams generated and demonstrate that the SOP of the input beam can be used to control both the shape and the SOP of the transformed beam. We also identify polarization singularities of such beams for the first time and demonstrate their control by the SOP of the input beam.

URLhttp://dx.doi.org/10.1364/OE.23.005704
Reprint Editionhttp://arxiv.org/abs/1411.1606
Campus d'excel·lència internacional U A B