Multiple Čerenkov second-harmonic waves in a two-dimensional nonlinear photonic structure

Date

2010-11-15

Authors

Wang, Wenjie
Sheng, Yan
Kong, Yongfa
Arie, Ady
Krolikowski, Wieslaw

Journal Title

Journal ISSN

Volume Title

Publisher

Optical Society of America

Abstract

We report simultaneous generation of multiple conical second-harmonic waves in a two-dimensional nonlinear photonic structure when illuminated by two overlapping noncollinear fundamental beams. We show that this phenomenon is caused by the nonlinear Čerenkov radiation emitted due to the interaction of photons from each constituent fundamental beam as well as the virtual one propagating along the bisector of the two beams. In addition, by studying the asymmetric geometry of the interaction, we uniquely verify the effects of reciprocal vectors on the Čerenkov-type second-harmonic generation in nonlinear photonic structures.

Description

Keywords

multiple, conical, second-harmonic, waves, two-dimensional, nonlinear, photonic, structure, Čerenkov, radiation

Citation

Source

Optics letters

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

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Restricted until