Non-collinear interaction of photons with orbital angular momentum

We elucidate the consequences of a phase-matching theory that describes second-harmonic generation of two non-collinear incident light beams that carry orbital angular momentum (OAM). More specifically, the two incident beams generate a third that, depending on the incident OAM, may experience a sig...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Thomas, Roger, Heitz, Julius J F, Wright, Ewan M, Faccio, Daniele
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 05.09.2013
Subjects
Angular momentum
Conversion
Incident light
Light beams
Phase matching
Photons
Second harmonic generation
Online AccessGet full text

Cover

More Information
Summary:We elucidate the consequences of a phase-matching theory that describes second-harmonic generation of two non-collinear incident light beams that carry orbital angular momentum (OAM). More specifically, the two incident beams generate a third that, depending on the incident OAM, may experience a significantly smaller conversion efficiency in comparison to that based on the conventional phase-matching theory. This is the case even for incident angles substantially less than those required for non-conservation of OAM in the nonlinear interaction. Experiments are performed under different conditions and are in excellent agreement with the theory. Our results have implications beyond the specific case studied here of second-harmonic generation, in particular for parametric down-conversion of photons.
ISSN:2331-8422