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arXiv 1808.06243physics.optics
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胆甾型与全电介质的极化保持各向异性镜界面上的手征光学Tamm态

Chiral Optical Tamm States at the Interface between a Cholesteric and an All-Dielectric Polarization-Preserving Anisotropic Mirror

Natalya V. Rudakova, Ivan V. Timofeev, Rashid G. Bikbaev, Maxim V. Pyatnov, Stepan Ya. Vetrov, Wei Lee

摘要:

手征光学Tamm态是光在保偏各向异性镜和光学手征介质(如胆甾相液晶)之间的界面处的一种新的局域态。在这项研究中,无金属保偏镜用于有效的谐振控制。强调了全介质结构在获得高Q值方面的优势。光在界面附近局部化,并且场随着离界面的距离呈指数衰减。场到手性介质中的穿透在对应于光子带隙的波长处并且接近螺旋的节距处几乎被阻挡。保偏镜还具有另一个光子带隙。我们的分析与精确计算非常吻合,可实现激光和传感应用的智能设计。

英文摘要:

The chiral optical Tamm state is a new localized state of light at the interface between a polarization-preserving anisotropic mirror and an optically chiral medium such as a cholesteric liquid crystal. In this study the metal-free polarization-preserving mirror is used for efficient resonance control. We stress the advantage of the all-dielectric structure in obtaining high Q factor. The light is localized near the interface and the field decreases exponentially with the distance from the interface. The penetration of the field into the chiral medium is virtually blocked at wavelengths corresponding to the photonic band gap and close to the pitch of the helix. The polarization-preserving mirror has another photonic band gap as well. Our analytics agrees well with precise calculations, enabling intelligent design for laser and sensing applications.

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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