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Nonlinear Optics: Semi‐Nonlinear Nanophotonic Waveguides for Highly Efficient Second‐Harmonic Generation (Laser Photonics Rev. 13(3)/2019)
Author(s) -
Luo Rui,
He Yang,
Liang Hanxiao,
Li Mingxiao,
Lin Qiang
Publication year - 2019
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201970016
Subject(s) - nanophotonics , photonics , second harmonic generation , nonlinear optics , nonlinear system , physics , waveguide , optics , parametric statistics , laser , optoelectronics , quantum mechanics , statistics , mathematics
In article number 1800288 , Rui Luo and co‐workers propose a universal design principle to enhance optical parametric generation. By heterogeneous integration of linear and nonlinear materials in the core of a nanophotonic waveguide, the spatial symmetry of the optical nonlinearity can be broken to optimize the mode overlap factor in modal‐phase‐matched second‐harmonic generation, resulting in a dramatically improved conversion efficiency. This approach promises energy efficient photonic signal processing on a variety of integrated platforms.