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arXiv 2403.00538physics.opticscond-mat.mes-hallnlin.CD
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具有Kerr非线性的Su-Schrieffer-Heeger晶格中边缘模式的不对称时间动力学

Asymmetrical temporal dynamics of edge modes in Su-Schrieffer-Heeger lattice with Kerr nonlinearity

Ghada Alharbi, Stephan Wong, Yongkang Gong, Sang Soon Oh

AI总结:

本文从理论上研究了具有Kerr非线性的Su-Schrieffer-Heeger晶格中边缘模式的分岔及其导致的光学双稳态,并揭示了由不同手性模式耦合引起的周期性与混沌切换行为。

摘要:

光学双稳态和振荡相位存在于由χ^(3)非线性介质构成的Sagnac干涉仪和单环谐振器中,其中折射率因Kerr非线性而受到光强调制。耦合非线性环谐振器阵列表现出类似行为,但由于存在额外的耦合而更加复杂。在此,我们从理论上证明了在具有Kerr非线性的Su-Schrieffer-Heeger晶格中,边缘模式的分岔导致了光学双稳态。此外,我们展示了振荡相位中的周期性和混沌切换行为,该行为源于边缘模式与具有不同手性(即顺时针和逆时针环流)的体模式之间的耦合。

英文摘要:

Optical bistability and oscillating phases exist in a Sagnac interferometer and a single ring resonator made of $χ^{(3)}$ nonlinear medium where the refractive indices are modulated by the light intensity due to the Kerr nonlinearity. An array of coupled nonlinear ring resonators behave similarly but with more complexity due to the presence of the additional couplings. Here, we theoretically demonstrate the bifurcation of edge modes which leads to optical bistability in the Su-Schrieffer-Heeger lattice with the Kerr nonlinearity. Additionally, we demonstrate periodic and chaotic switching behaviors in an oscillating phase resulting from the coupling between the edge mode and bulk modes with different chiralities, i.e., clockwise and counter-clockwise circulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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