Experimental observation of the spin Hall effect of light on a nanometal film via weak measurements
Open accessAbstract
We theorize the spin Hall effect of light (SHEL) on a nanometal film and demonstrate it experimentally via weak measurements. A general propagation model to describe the relationship between the spin-orbit coupling and the thickness of the metal film is established. It is revealed that the spin-orbit coupling in the SHEL can be effectively modulated by adjusting the thickness of the metal film, and the transverse displacement is sensitive to the thickness of metal film in a certain range for horizontal polarization light. Importantly, a large negative transverse shift can be observed as a consequence of the combined contribution of the ratio and the phase difference of Fresnel coefficients.
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The SAM-IOAM coupling in nonparaxial optical fields is largely independent of how the field was generated; dipole Rayleigh scattering by a small particle generates a similar conical distribution and spin-to-orbital AM conversion.
“The SAM- IOAM coupling in nonparaxial optical fields is largely independent of how the field was generated. Instead of high-NA focusing, one can consider dipole Rayleigh scattering by a small particle, which generates a similar conical distribution of the outgoing wavevectors, Fig. 2d.”
From Spin–orbit interactions of light (2015) · cites this paper as [21]
The Theoretical Model (p. 2) attributes spin–orbit coupling to the transverse nature of photon polarization, supporting a general connection between polarization and the field’s spatial behavior. But the paper analyzes reflection from a nanometal film; it does not establish generation-independent coupling or describe dipole Rayleigh scattering, a conical wavevector distribution, or spin-to-orbital angular-momentum conversion. (LLM, conf=0.82)
Experimental — accuracy not yet measuredFocusing circularly-polarized light by a high-numerical-aperture lens generates a spin-dependent optical vortex in the focal field.
“(ii) Focusing of circularly-polarized light by a high-numerical-aperture lens results in the generation of a spin-dependent optical vortex (i.e., helical phase producing orbital angular momentum) in the focal field.”
From Spin–orbit interactions of light (2015) · cites this paper as [21]
The Experimental Observation section (p. 3) describes a lens producing a linearly polarized focused beam for a reflection experiment on a silver film. The Theoretical Model (pp. 1–2) concerns spin-dependent transverse shifts after reflection, not vortex generation in a focal field. Searches for high-numerical-aperture focusing and helical-phase optical vortices found no passage addressing the claim. (LLM, conf=0.78)
Experimental — accuracy not yet measured
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References 35 · Cited by 310
- Authors
- Zhou, X., Xiao, Z., Luo, H., & Wen, S.
- Affiliations
- Hunan University (CN)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2012-04-09
- Volume
- 85
- Issue
- 4
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2057028835
- Cited by
- 310
- References
- 35
- Citations by year
- 2026: 14 · 2025: 28 · 2024: 28 · 2023: 27 · 2022: 28 · 2021: 27 · 2020: 24 · 2019: 31 · 2018: 23 · 2017: 25 · 2016: 18 · 2015: 9 · 2014: 16 · 2013: 6 · 2012: 6
- FWCI
- 6.12
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
- Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
- Keywords
- spin Hall effect of light, weak measurement, spin-orbit coupling, lateral displacement, Fresnel coefficients, horizontal polarization, propagation models
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