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
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Source
Optics letters
Type
Journal article
Book Title
Entity type
Access Statement
Open Access