Interplay between diffraction and the Pancharatnam-Berry phase in inhomogeneously twisted anisotropic media
Interplay between diffraction and the Pancharatnam-Berry phase in inhomogeneously twisted anisotropic media
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非均匀扭曲各向异性介质中衍射与 Pancharatnam-Berry 相之间的相互作用
DOI：
10.1103/physreva.95.023823
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发表时间：
2016
影响因子：
2.9
通讯作者：
G. Assanto
中科院分区：
文献类型：
--
作者：
C. Jisha;A. Alberucci;L. Marrucci;G. Assanto
We discuss the propagation of an electromagnetic field in an inhomogeneously anisotropic material where the optic axis is rotated in the transverse plane but is invariant along the propagation direction. In such a configuration, the evolution of an electromagnetic wavepacket is governed by the Pancharatnam-Berry phase (PBP), responsible for the appearance of an effective photonic potential. In a recent paper [A. Alberucci et al., "Electromagnetic confinement via spin-orbit interaction in anisotropic dielectrics", ACS Photonics \textbf{3}, 2249 (2016)] we demonstrated that the effective potential supports transverse confinement. Here we find the profile of the quasi-modes and show that the photonic potential arises from the Kapitza effect of light. The theoretical results are confirmed by numerical simulations, accounting for the medium birefringence. Finally, we analyze in detail a configuration able to support non-leaky guided modes.
影响因子：
38.3
作者：
Zheng, Guoxing;Muehlenbernd, Holger;Zhang, Shuang
通讯作者：
Zhang, Shuang