Omnidirectional phase matching of arbitrary processes by radial quasi-periodic nonlinear photonic crystal

Noa Voloch-Bloch*, Tomer Davidovich, Tal Ellenbogen, Ayelet Ganany-Padowicz, Ady Arie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate second-harmonic generation in a nonlinear photonic crystal having radial quasi-periodic order and continuous rotational symmetry. This device enables us to simultaneously phase match different nonlinear interactions in any arbitrary direction of propagation. We have fabricated such a crystal by electric field poling of a magnesium-doped stoichiometric LaTaO3 and demonstrated frequency doubling of two different pump wavelengths at three different angles. Fourier coefficients were 10 times higher than that of a lattice-based multidirectional frequency doubler.

Original languageEnglish
Pages (from-to)2499-2501
Number of pages3
JournalOptics Letters
Volume35
Issue number14
DOIs
StatePublished - 15 Jul 2010

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