Giant enhancement of THz-frequency optical nonlinearity by phonon polariton in ionic crystals

Yao Lu; Qi Zhang; Qiang Wu; Zhigang Chen; Xueming Liu; Jingjun Xu

doi:10.1038/s41467-021-23526-w

Nature Communications (May 2021)

Giant enhancement of THz-frequency optical nonlinearity by phonon polariton in ionic crystals

Yao Lu,
Qi Zhang,
Qiang Wu,
Zhigang Chen,
Xueming Liu,
Jingjun Xu

Affiliations

Yao Lu: MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University
Qi Zhang: MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University
Qiang Wu: MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University
Zhigang Chen: MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University
Xueming Liu: School of Automation, Nanjing University of Information Science & Technology
Jingjun Xu: MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University

DOI: https://doi.org/10.1038/s41467-021-23526-w
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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Optical nonlinearity in the THz range is of interest for scientific applications. Here the authors show that THz nonlinearity in ionic crystals can be enhanced by orders of magnitude through phonon polaritons, which is also described by nonlinear modified Huang equations.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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