4-bar-quasi-phasematching for second-harmonic generation in microdisks

Published

August 15, 2011

Author(s)

Paulina S. Kuo, Glenn S. Solomon

Abstract

We present a theoretical description of resonantly enhanced, 4-bar-quasi-phasematched, second-harmonic generation in microdisks made of materials possessing 4-bar symmetry, such as GaAs, GaP and ZnSe. The theory describes the interplay between quasi-phasematching and the cavity-resonance conditions. For optimal conversion, all waves should be resonant with the microdisk and should satisfy the 4-bar-quasi-phasematching (QPM) condition. We explore chi(2) nonlinear mixing if one of the waves is not resonant with the microdisk cavity and calculate the conversion when either the fundamental or the second-harmonic wave is off-resonance with the microdisk cavity. We also describe perfectly destructive 4-bar-QPM where both the fundamental and SH are on-resonance with the cavity but SHG is suppressed.

Citation

Optics Express

Volume

19

Issue

18

Pub Type

Journals

Download Paper

https://doi.org/10.1364/OE.19.016898

Keywords

second-harmonic generation, gallium arsenide, quasi-phasematching, microdisk resonators

Citation

Kuo, P. and Solomon, G. (2011), 4-bar-quasi-phasematching for second-harmonic generation in microdisks, Optics Express, [online], https://doi.org/10.1364/OE.19.016898 (Accessed October 16, 2025)