Cascaded Third-Harmonic Generation in Optically Induced 3D Nonlinear Photonic Crystals

Tianxiang Xu; Sen Wang; Jing Zeng; Dawei Liu; Ruwei Zhao; Yuming Yao; Yuhao Zhao; Hui Zhao; Tiefeng Xu; Yan Sheng

doi:10.3390/photonics11040313

Photonics (Mar 2024)

Cascaded Third-Harmonic Generation in Optically Induced 3D Nonlinear Photonic Crystals

Tianxiang Xu,
Sen Wang,
Jing Zeng,
Dawei Liu,
Ruwei Zhao,
Yuming Yao,
Yuhao Zhao,
Hui Zhao,
Tiefeng Xu,
Yan Sheng

Affiliations

Tianxiang Xu: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Sen Wang: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Jing Zeng: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Dawei Liu: Department of Electronic Materials Engineering, Research School of Physics, Australian National University, Canberra, ACT 2601, Australia
Ruwei Zhao: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Yuming Yao: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Yuhao Zhao: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Hui Zhao: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Tiefeng Xu: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
Yan Sheng: Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China

DOI: https://doi.org/10.3390/photonics11040313
Journal volume & issue: Vol. 11, no. 4
p. 313

Abstract

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Nonlinear photonic crystals with 3D orthorhombic lattice structures were fabricated using the femtosecond laser-poling technique in ferroelectric Sr0.28Ba0.72Nb2O6 (SBN) crystals. The crystals were used to demonstrate the possibility of generating cascaded third-harmonic waves in optically poled ferroelectric structures. The spectral response and conversion efficiency of the third-harmonic process were experimentally investigated. While the nonlinear cascading processes can be commonly realized in electric-field-poled ferroelectric crystals, their generation in optically poled ferroelectric domain structures have not been reported elsewhere. In addition to the fully phase-matched nonlinear interaction, Cherenkov-type third-harmonic generation that fulfills the longitudinal phase-matching condition was also experimentally studied. Our study contributes to exploring the full potential of optically induced nonlinear photonic crystals and provides a new choice of materials for third-harmonic generation.

Published in Photonics

ISSN: 2304-6732 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: http://www.mdpi.com/journal/photonics

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