Cited by 109Orbital Angular Momentum in OpticsOptical Polarization and EllipsometryMetamaterials and Metasurfaces Applications

Conservation of angular momentum of light in single scattering

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Dogariu, Aristide, Schwartz, Chaim·2006·Optics Express

Abstract

In this paper we discuss the conservation of angular momentum of light in single scattering of circularly polarized light from a spherical, non-absorbing particle. We show that the angular momentum carried by the incident wave is distributed in the scattered waves between terms related to polarization or spin and to orbital angular momentum, respectively. We also show that, in all scattering directions, a constant ratio exists between the flux density of the total angular momentum and the intensity.

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Crossref · 10.1364/oe.14.008425

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6 of 6 references verified0 citation errors · 0 not checkable

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  • Focusing 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 [24]

  • Part of the orbital AM becomes helicity-dependent, so a helicity-dependent vortex should appear even in beams with l=0.

    “Part of the orbital AM becomes helicity -dependent, i.e., a helicity-dependent vortex should appear even in beams with  = 0 (Fig. 2b) 22- 24,27 .”

    From Spin–orbit interactions of light (2015) · cites this paper as [24]

  • Due to the off-diagonal elements, incoming circularly-polarized light with helicity σ acquires an oppositely-polarized component with helicity -σ and vortex factor, and also a longitudinal z-component with vortex; for small apertures, the longitudinal component plays the leading role in AM conversion.

    “Due to these elements, the incoming circularly-polarized light with helicity σ acquires an oppositely-polarized component with helicity -σ and vortex factor b exp 2 i σφ ( ) , and also a longitudinal z -component with the vortex 2 ab exp i ( σφ ) . For small apertures, the longitudinal component plays the leading role in the AM conversion.”

    From Spin–orbit interactions of light (2015) · cites this paper as [24]

  • The spin-to-orbital AM conversion can be interpreted as an azimuthal spin-Hall effect in cylindrically-symmetric fields; breaking this symmetry results in a pronounced spin-Hall effect in the direction orthogonal to the symmetry-breaking axis.

    “The spin-to-orbital AM conversion can be interpreted as an azimuthal spin-Hall effect in cylindrically-symmetric fields 24,26,112 . Breaking this symmetry results in a pronounced spin-Hall effect in the direction orthogonal to the symmetry-breaking axis 8,28- 33 .”

    From Spin–orbit interactions of light (2015) · cites this paper as [24]

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Authors
Dogariu, A., & Schwartz, C.
Affiliations
University of Central Florida (US)
Venue
Optics Express
Published
2006
Volume
14
Issue
18
Pages
8425
ISSN
1094-4087 (ISSN-L)
OpenAlex
W2097599719
Cited by
108
References
6
Citations by year
2026: 4 · 2025: 4 · 2024: 9 · 2023: 4 · 2022: 3 · 2021: 11 · 2020: 12 · 2019: 8 · 2018: 12 · 2017: 3 · 2016: 2 · 2015: 9 · 2014: 4 · 2013: 6 · 2012: 3
FWCI
1.08
Type
journal article
Language
en
Open access
Locations
  • Optics Express (publishedVersion)
  • PubMed (publishedVersion)
  • Journal of International Crisis and Risk Communication Research (submittedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
  • Physical Sciences › Engineering › Biomedical Engineering › Optical Polarization and Ellipsometry
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
Keywords
angular momentum of light, single scattering, circularly polarized light, spherical particles, spin angular momentum, orbital angular momentum, angular momentum conservation

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