Rayleigh scatterer-induced steady exceptional points of stable-island modes in a deformed optical microdisk

Gwak Sunjae; Kim Hyundong; Yu Hyeon-Hye; Ryu Jinhyeok; Kim Chil-Min; Yi Chang-Hwan

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Rayleigh scatterer-induced steady exceptional points of stable-island modes in a deformed optical microdisk

机译：Rayleigh散射仪在变形光学微仪中诱导稳定的岛模式的稳定卓越点

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A formation of second-order non-Hermitian degeneracies, called exceptional points (EPs), in a chaotic oval-shaped dielectric microdisk is studied. Different symmetric optical modes localized on a stable period-3 orbit coalesce to form chiral EPs. Unlike a circular microdisk perturbed by two scatterers (CTS), our proposed system requires only one scatterer to build chiral EPs. The scatterer positions for counterpropagating EP modes are far distant from one another and almost steady against varying scatterer sizes in contrast to the CTS case. Our results can contribute to establishing a more solid platform for EP-based-device applications with flexibility and easy feasibility in obtaining EPs. (C) 2021 Optical Society of America

机译：研究了混沌椭圆介质微盘中二阶非厄米简并的形成，称为例外点。稳定周期3轨道上的不同对称光学模式会聚形成手征EPs。与被两个散射体（CTS）扰动的圆形微盘不同，我们提出的系统只需要一个散射体就可以构建手性EPs。与CTS情况相比，反向传播EP模式的散射体位置彼此相距很远，并且在不同的散射体尺寸下几乎稳定。我们的研究结果将有助于为基于EP的设备应用建立一个更坚实的平台，该平台在获得EP方面具有灵活性和可行性。（2021）美国光学学会

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来源
《Optics Letters》 |2021年第12期|共4页
作者
Gwak Sunjae; Kim Hyundong; Yu Hyeon-Hye; Ryu Jinhyeok; Kim Chil-Min; Yi Chang-Hwan;
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DGIST Dept Emerging Mat Sci Daegu 42988 South Korea;

DGIST Dept Emerging Mat Sci Daegu 42988 South Korea;

DGIST Dept Emerging Mat Sci Daegu 42988 South Korea;

DGIST Dept Emerging Mat Sci Daegu 42988 South Korea;

DGIST Dept Emerging Mat Sci Daegu 42988 South Korea;

DGIST Dept Emerging Mat Sci Daegu 42988 South Korea;

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正文语种 eng
中图分类计量学;光学;
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Rayleigh scatterer-induced steady exceptional points of stable-island modes in a deformed optical microdisk

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