Visualization of the optical spin Hall effect in out-of-plane refraction
- 주제(기타) Optics
- 설명문(일반) [Lee, Yeon Ui] Chungbuk Natl Univ, Dept Phys, Cheongju 28644, Chungbuk, South Korea; [Wu, Jeong Weon] Ewha Womans Univ, Dept Phys, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 Optica Publishing Group
- 발행년도 2023
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000213322
- 본문언어 영어
- Published As https://doi.org/10.1364/OL.507478
- PubMed 37966770
초록/요약
The traditional law of refraction defines the incidence plane as the plane including the incident beam wavevector and the surface normal vector at the interface of two different optical media. The optical spin Hall effect (OSHE) refers to the spin-dependent transverse shift of the refracted beam perpendicular to the incidence plane. In this Letter, we demonstrate that OSHE in out-of-plane refraction can be detected and visualized in the far-field, even at small and normal incidence angles. The extent of spin-dependent pho-ton spatial separation induced by anomalous refraction can be customized by manipulating the 2D additive momen-tum from the metasurface. Experimental visualization of the OSHE confirms the existence of a new, to the best of our knowledge, plane to describe the OSHE of the refracted beam outside the incidence plane. (c) 2023 Optica Publishing Group
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