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arXiv 1202.5613physics.opticsphysics.class-ph
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各向异性诱导Fano共振

Anisotropy-induced Fano resonance

Cheng-Wei Qiu, Andrey Novitsky, Lei Gao, Jian-Wen Dong, Boris Luk'yanchuk

摘要:

发现了由双折射控制而非频率选择引起的光学Fano共振。这种双折射引起的Fano共振伴随着快速开关辐射。揭示了共振条件$\varepsilon_t< 1/\varepsilon_r$,发现双折射的微小扰动导致近表面等离子体共振引起的主光极的巨大开关。研究了损耗和尺寸对Fano共振的影响,即使损耗和尺寸增加,Fano共振仍然很明显。辐射方向图和能量奇异性的演化清楚地说明了Fano共振对双折射的敏感依赖性。

英文摘要:

An optical Fano resonance, which is caused by birefringence control rather than frequency selection, is discovered. Such birefringence-induced Fano resonance comes with fast-switching radiation. The resonance condition $\varepsilon_t< 1/\varepsilon_r$ is revealed and a tiny perturbation in birefringence is found to result in a giant switch in the principal light pole induced near surface plasmon resonance. The loss and size effects upon the Fano resonance have been studied Fano resonance is still pronounced, even if the loss and size of the object increase. The evolutions of the radiation patterns and energy singularities illustrate clearly the sensitive dependence of Fano resonance upon the birefringence.

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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