Title | On the dual-cone nature of the conical refraction phenomenon |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Turpin, A, Loiko, YV, Kalkandjiev, TK, Tomizawa, H, Mompart, J |
Journal | Optics Letters |
Volume | 40 |
Start Page | 1639 |
Issue | 8 |
Pagination | 1639–1642 |
Date Published | Apr |
Keywords | Birefringence, Crystal optics, Refraction |
Abstract | In conical refraction (CR), a focused Gaussian input beam passing through a biaxial crystal and parallel to one of the optic axes is transformed into a pair of concentric bright rings split by a dark (Poggendorff) ring at the focal plane. Here, we show the generation of a CR transverse pattern that does not present the Poggendorff fine splitting at the focal plane, i.e., it forms a single light ring. This light ring is generated from a nonhomogeneously polarized input light beam obtained by using a spatially inhomogeneous polarizer that mimics the characteristic CR polarization distribution. This polarizer allows modulating the relative intensity between the two CR light cones in accordance with the recently proposed dual-cone model of the CR phenomenon. We show that the absence of interfering rings at the focal plane is caused by the selection of one of the two CR cones. |
URL | http://ol.osa.org/abstract.cfm?URI=ol-40-8-1639 |
DOI | 10.1364/OL.40.001639 |
