Cited by 103Orbital Angular Momentum in OpticsDigital Holography and MicroscopyLaser-Matter Interactions and Applications

Investigation of polarization effects for high-numerical-aperture first-order Laguerre-Gaussian beams by 2D scanning with a single fluorescent microbead

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Bokor, Nandor, Iketaki, Yoshinor, Watanabe, Takeshi, Fujii, Masaaki·2005·Optics Express

Abstract

The focal intensity distribution of strongly focused (NA=0.9) first order Laguerre-Gaussian doughnut beams is investigated experimentally for three different polarizations: linear, and left-handed circular and right-handed circular. The investigations are done by 2-dimensional scanning the focal plane with of a 100nm diameter fluorescent microbead, and measuring the fluorescence signal. The results are shown to be in excellent agreement with theoretical predictions, and demonstrate the superiority of one of the circular polarizations to achieve a sharp dark central spot.

Integrity signals

Registry

Crossref · 10.1364/opex.13.010440

Cites

15 of 15 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 [23]

  • The presence of helicity-dependent vortices and IOAM in focused light was observed using probe particles, which experienced transverse orbital rotation around the beam axis with sense determined by the helicity of the incoming wave that had no vorticity prior to focusing.

    “The presence of the helicity-dependent vortices and IOAM in focused light was observed using probe particles interacting with the focal field 22,23,99 , Fig. 2b. The particles experienced transverse orbital rotation around the beam axis, which is characteristic of optical vortices 101,102 , with the sense of a rotation determined by the helicity of the incoming wave, which”

    From Spin–orbit interactions of light (2015) · cites this paper as [23]

  • 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 [23]

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Authors
Bokor, N., Iketaki, Y., Watanabe, T., & Fujii, M.
Affiliations
  • Olympus (Japan) (JP)
  • Tokyo Institute of Technology (JP)
Venue
Optics Express
Published
2005
Volume
13
Issue
26
Pages
10440
ISSN
1094-4087 (ISSN-L)
OpenAlex
W2052521774
Cited by
102
References
15
Citations by year
2026: 4 · 2025: 9 · 2024: 8 · 2023: 5 · 2022: 2 · 2021: 8 · 2020: 3 · 2019: 6 · 2018: 6 · 2017: 7 · 2015: 2 · 2014: 4 · 2013: 1 · 2012: 6
FWCI
3.27
Type
journal article
Language
en
Open access
Locations
  • Optics Express (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Digital Holography and Microscopy
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
Keywords
Laguerre-Gaussian beams, doughnut beam, polarization effects, high numerical aperture, focal intensity distribution, circular polarization, linear polarization, two-dimensional scanning

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