Recent advances in phase matching of second‐order nonlinearities in monolithic semiconductor waveguides

AS Helmy, P Abolghasem… - Laser & Photonics …, 2011 - Wiley Online Library
Techniques used to assist phase matching of second‐order nonlinearities in semiconductor
waveguides are reviewed. The salient points of each method are highlighted, with their …

Electromagnetic unidirectionality in magnetic photonic crystals

A Figotin, I Vitebskiy - Physical Review B, 2003 - APS
We study the effect of electromagnetic unidirectionality, which can occur in magnetic
photonic crystals under certain conditions. A unidirectional periodic medium, being perfectly …

χ(2) and χ(3) harmonic generation at a critical power in inhomogeneous doubly resonant cavities

A Rodriguez, M Soljačić, JD Joannopoulos… - Optics express, 2007 - opg.optica.org
We derive general conditions for 100% frequency conversion in any doubly resonant
nonlinear cavity, for both second-and third-harmonic generation via Χ?^(2) and Χ^(3) …

Enhanced nonlinear optics in photonic-crystal microcavities

J Bravo-Abad, A Rodriguez, P Bermel, SG Johnson… - Optics express, 2007 - opg.optica.org
Focus Serial: Frontiers of Nonlinear Optics Nonlinear photonic-crystal microresonators offer
unique fundamental ways of enhancing a variety of nonlinear optical processes. This …

Wave interactions in photonic band structures: an overview

M Bertolotti - Journal of Optics A: Pure and Applied Optics, 2006 - iopscience.iop.org
An overview of the most relevant properties of photonic crystals is presented considering 1D,
2D and 3D structures. The emphasis is on nonlinear properties both of the second and third …

Oblique frozen modes in periodic layered media

A Figotin, I Vitebskiy - Physical Review E, 2003 - APS
We study the classical scattering problem of a plane electromagnetic wave incident on the
surface of semi-infinite periodic stratified media incorporating anisotropic dielectric layers …

Giant second-harmonic generation efficiency and ideal phase matching with a double ε-near-zero cross-slit metamaterial

C Argyropoulos, G D'Aguanno, A Alu - Physical Review B, 2014 - APS
Efficient second-harmonic generation may be induced based on the anomalous tunneling
properties of double zero-permittivity narrow cross-slit nonlinear channels. Ideal phase …

Ferroelectric chiral nematic liquid crystals: new photonic materials with multiple bandgaps controllable by low electric fields

J Ortega, CL Folcia, J Etxebarria, T Sierra - Liquid Crystals, 2022 - Taylor & Francis
We have carried out a spectroscopic study on a prototype ferroelectric nematic material
(RM734) doped with a non-polar chiral compound. The mixture presents two chiral nematic …

High-efficiency second-harmonic generation in doubly-resonant χ(2) microring resonators

ZF Bi, AW Rodriguez, H Hashemi, D Duchesne… - Optics express, 2012 - opg.optica.org
By directly simulating Maxwell's equations via the finite-difference time-domain (FDTD)
method, we numerically demonstrate the possibility of achieving high-efficiency second …

Density of modes and tunneling times in finite one-dimensional photonic crystals: A comprehensive analysis

G d'Aguanno, N Mattiucci, M Scalora, MJ Bloemer… - Physical Review E …, 2004 - APS
We present a unified treatment of density of modes and tunneling times in finite, one-
dimensional photonic crystals. We exploit connections and differences between the various …