通过在一维晶格中形成孤子实现拓扑终态的光学控制

IF 6.5 2区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanophotonics Pub Date : 2024-10-21 DOI:10.1515/nanoph-2024-0401

Christina Jörg, Marius Jürgensen, Sebabrata Mukherjee, Mikael C. Rechtsman

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引用次数: 0

摘要

离散空间孤子是离散非线性薛定谔方程的自洽解，能在传播过程中保持形状。在这里，我们利用泵浦探针技术展示了孤子的形成可用于光学诱导和控制苏-施里弗-希格晶格体中的线性拓扑末端状态，使用的是evanescently耦合波导阵列。具体来说，我们观察到，由于反转对称性破坏非线性分叉，在超过一定功率阈值时，会突然出现非线性诱导的转变。我们的研究结果证明了拓扑状态的全光主动控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Optical control of topological end states via soliton formation in a 1D lattice

Discrete spatial solitons are self-consistent solutions of the discrete nonlinear Schrödinger equation that maintain their shape during propagation. Here we show, using a pump-probe technique, that soliton formation can be used to optically induce and control a linear topological end state in the bulk of a Su–Schrieffer–Heeger lattice, using evanescently-coupled waveguide arrays. Specifically, we observe an abrupt nonlinearly-induced transition above a certain power threshold due to an inversion symmetry-breaking nonlinear bifurcation. Our results demonstrate all-optical active control of topological states.

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来源期刊

Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

13.50

自引率

6.70%

发文量

358

审稿时长

7 weeks

期刊介绍： Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.