Cited by 510Orbital Angular Momentum in OpticsMetamaterials and Metasurfaces ApplicationsLaser-Matter Interactions and Applications

Spin-to-orbital conversion of the angular momentum of light and its classical and quantum applications

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Marrucci, Lorenzo, Karimi, Ebrahim, Slussarenko, Sergei, Piccirillo, Bruno, Santamato, Enrico, Nagali, Eleonora, Sciarrino, Fabio·2011·Journal of Optics

Abstract

A few years ago the possibility of coupling and inter-converting the spin and orbital angular momentum (SAM and OAM) of paraxial light beams in inhomogeneous anisotropic media was demonstrated. An important case is provided by waveplates having a singular transverse pattern of the birefringent optical axis, with a topological singularity of charge q at the plate center, hence named ' q -plates'. The introduction of q -plates has given rise in recent years to a number of new results and to significant progress in the field of orbital angular momentum of light. Particularly promising are the quantum photonic applications, because the polarization control of OAM allows the transfer of quantum information from the SAM qubit space to an OAM subspace of a photon and vice versa. In this paper, we review the development of the q -plate idea and some of the most significant results that have originated from it, and we will briefly touch on many other related findings concerning the interaction of the SAM and OAM of light.

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Crossref · 10.1088/2040-8978/13/6/064001

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  • The fundamental mechanisms underlying spin-dependent deformation of optical fields are geometric phases.

    “Most importantly, the fundamental mechanisms underlying the spin-dependent deformation of optical fields are geometric phases (see Box 2).”

    From Spin–orbit interactions of light (2015) · cites this paper as [6]

    The Introduction (page unavailable) says that wavefront reshaping with Pancharatnam–Berry optical elements works by introducing a space-varying geometric phase through polarization manipulation. This supports geometric phase as a mechanism for spin-dependent field shaping, but the paper does not establish that geometric phases underlie all such deformation; it also describes spin-to-orbital conversion in terms of birefringence and medium inhomogeneity. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • For a planar anisotropic element (transparent retarder with phase δ and anisotropy axis at angle α), the Jones-matrix transformation of wave polarization becomes (5), with off-diagonal elements originating from geometric phases induced by rotation of coordinates.

    “Performing a rotation by the angle α to the laboratory coordinate frame and also writing this matrix in the helicity basis of right-hand and left-hand circular polarizations, the Jones-matrix transformation of the wave polarization becomes 5,6,37- 39,114”

    From Spin–orbit interactions of light (2015) · cites this paper as [6]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • The off-diagonal geometric-phase elements of Eq. (5) offer helicity-dependent manipulation of light using the orientation of the anisotropy axis; anisotropic subwavelength gratings with space-variant orientation have been employed for geometric-phase-induced shaping of light.

    “The off-diagonal geometric-phase elements of Eq. (5) offer helicity-dependent manipulation of light using the orientation of the anisotropy axis. In particular, anisotropic subwavelength gratings with space-variant orientation α = α x , y ( ) have been employed for the geometric-phase-induced shaping of light 5,6,37- 39,41,114- 117 .”

    From Spin–orbit interactions of light (2015) · cites this paper as [6]

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Authors
Marrucci, L., Karimi, E., Slussarenko, S., Piccirillo, B., Santamato, E., Nagali, E., & Sciarrino, F.
Affiliations
  • Superconducting and other Innovative Materials and Devices Institute (IT)
  • University of Naples Federico II (IT)
  • National Interuniversity Consortium for the Physical Sciences of Matter (IT)
  • Sapienza University of Rome (IT)
  • National Institute of Optics (IT)
Venue
Journal of Optics
Published
2011-04-27
Volume
13
Issue
6
Pages
064001
ISSN
  • 0150-536X (ISSN-L)
  • 2040-8978
  • 2040-8986
OpenAlex
W2132951583
Cited by
510
References
123
Citations by year
2026: 27 · 2025: 29 · 2024: 24 · 2023: 32 · 2022: 39 · 2021: 42 · 2020: 30 · 2019: 45 · 2018: 49 · 2017: 48 · 2016: 18 · 2015: 31 · 2014: 21 · 2013: 35 · 2012: 27
FWCI
16.63
Type
journal article
Language
en
Open access
Locations
  • Journal of Optics (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Griffith Research Online (submittedVersion)
Funders
European Commission (255914)
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 › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
Keywords
orbital angular momentum of light, spin angular momentum, q-plate, topological charge, anisotropic materials, polarization control, quantum information transfer

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