Type I and type II second harmonic generation of conically refracted beams

TitleType I and type II second harmonic generation of conically refracted beams
Publication TypeJournal Article
Year of Publication2013
AuthorsTurpin, A, Loiko, YV, Kalkandjiev, TK, Trull, J, Cojocaru, C, Mompart, J
JournalOptics Letters
Volume38
Start Page2484
Issue14
Pagination2484–2486
Date Published07/2013
ISSN0146-9592
KeywordsBirefringence, Crystal optics, Diffraction theory, Harmonic generation and mixing
Abstract

Type I and type II second harmonic generation (SHG) of a beam transformed by the conical refraction phenomenon are presented. We show that, for type I, the second harmonic intensity pattern is a light ring with a point of null intensity while, for type II, the light ring possesses two dark regions. Taking into account the different two-photon processes involved in SHG, we have derived analytical expressions for the resulting transverse intensity patterns that are in good agreement with the experimental data. Finally, we have investigated the spatial evolution of the second harmonic signals, showing that they behave as conically refracted beams.

URLhttp://ol.osa.org/abstract.cfm?URI=ol-38-14-2484
DOI10.1364/OL.38.002484
Reprint Editionhttp://arxiv.org/abs/1410.3782
Campus d'excel·lència internacional U A B