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Nanoparticle-mediated chiral light chaos based on non-Hermitian mode coupling

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Abstract

Non-Hermitian physics basically due to the interplay between gain and loss has attracted considerable attention in the context of understanding various brand-new and counterintuitive physical phenomena. The major emphasis of this work is concerned with the chirality properties of chaotic motion in a whispering-gallery-mode microresonator based on nanoparticle-induced non-Hermitian mode coupling, which will be a challenging endeavor that is rarely presented in previous literature. By operating the nanoparticles in a whispering-gallery-mode microresonator, we achieved a dynamic control of chaotic behavior, and a rather more exotic finding is that the chaotic motion features chiral characteristics. Our results provide insight into nonlinear nano-optomechanics and fundamentally broaden the regime of chaotic dynamics. In addition, the proposal of chiral light chaos may offer attractive new prospects for the development of on-chip manipulation of chaotic light propagation and chiral photonic crystals, and could affect nanoscientific fields beyond optics.

Graphical abstract: Nanoparticle-mediated chiral light chaos based on non-Hermitian mode coupling

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Article information


Submitted
19 Sep 2019
Accepted
11 Dec 2019
First published
12 Dec 2019

Nanoscale, 2020, Advance Article
Article type
Paper

Nanoparticle-mediated chiral light chaos based on non-Hermitian mode coupling

Z. Liu, C. You, B. Wang, H. Dong, H. Xiong and Y. Wu, Nanoscale, 2020, Advance Article , DOI: 10.1039/C9NR08066J

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