双层
材料科学
扭转
梁(结构)
反射率
光束
相(物质)
光学
光电子学
物理
化学
几何学
膜
数学
生物化学
量子力学
作者
Yubo Li,Haoyuan Song,Yuqi Zhang,Xiang-Guang Wang,Shufang Fu,Xuan-Zhang Wang
出处
期刊:Chinese Physics B
[IOP Publishing]
日期:2022-05-01
卷期号:31 (6): 064207-064207
被引量:1
标识
DOI:10.1088/1674-1056/ac3733
摘要
We investigated Goos–Hänchen (GH) and Imbert–Fedorov (IF) shifts of a reflective beam on a twisted bilayer of hexagonal boron nitride (hBN), where a left circularly polarized beam was incident on the surface. Our results demonstrate that the twist angle between the two optical axes plays an important role in obtaining large shifts with a high reflectivity. The GH shift with 10 λ 0 is achieved, while the reflectivity is near 100% by tuning the twist angle. The maximum of the IF shift is found in the certain condition satisfied by the reflective coefficients, and the shift strongly depends on the twist angle between the optical axes of the two slabs. The spatial shifts obtained directly from the GH and IF shift definitions were provided, which indicate that the theoretical results from the stationary phase method are believable. These results may open up a new way for developing the nano-optical devices.
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