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arXiv 2209.15554physics.optics
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逆圆布拉格现象

Reverse Circular Bragg Phenomenon

Martin W. McCall, Stefanos Fr. Koufidis

摘要:

通过全电磁场分析,精确求解了圆偏振光在旋光结构手性介质中的轴向传播。系统的特征矩阵的一些对称性揭示了新的见解,这是由耦合波理论证实。对于现在通过超材料可以获得的手征性的极端值,在负折射区域中出现反向圆形布拉格共振,其中对应模式发生旋向反转。一个条件下,光学活动抵消结构手性,使介质简单地双折射。

英文摘要:

The axial propagation of circularly polarized light in an optically active structurally chiral medium is exactly solved via full electromagnetic analysis. Some symmetries of the system's characteristic matrix reveal new insights, which are confirmed by coupled wave theory. For extreme values of chirality, now accessible via metamaterials, a reverse circular Bragg resonance arises in the negative refraction regime where handedness reversal of counterpart modes occurs. A condition is identified under which optical activity offsets structural chirality, rendering the medium simply birefringent.

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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