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Cited by 21Orbital Angular Momentum in OpticsNear-Field Optical MicroscopyOptical Polarization and Ellipsometry

Partial polarization of optical beams and near fields probed with a nanoscatterer

Leppänen, Lasse-Petteri, Friberg, Ari T., Setälä, Tero·2014·Journal of the Optical Society of America A
DOI 10.1364/josaa.31.001627
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Abstract

We consider theoretically the detection of the spectral polarization characteristics of random, partially polarized optical beams and near fields by probing them with a dipolar nanoparticle. We show that measuring the polarization state of the scattered far field with a conventional waveplate-polarizer setup, possibly in several directions, results in the full 3×3 polarization matrix at the probe site. This allows us to deduce the distributions of the degree of polarization of the field and the Stokes parameters of the polarized part of the field with a resolution limited by the probe size. Regarding random near fields we show that, in analogy with a known result on beam fields, a degree of polarization of three-component light fields put forward in recent literature can in some cases be interpreted as a ratio of the intensity in the polarized part of the light to that of the total field. We demonstrate the technique by considering the probing of a Gaussian-Schell model beam and a thermally excited near field. The method extends the current scanning-probe techniques to the detection of partial polarization of random light fields and can find applications in nanophotonics and polarization optics.

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Crossref · 10.1364/josaa.31.001627

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  • The polarization matrix of any 3D field can straightforwardly be measured by using nanoprobe scatterers, enabling an experimental determination of the concepts presented.

    “The polarization matrix of any 3D field can straightforwardly be measured by using nanoprobe scatterers [34,35] enabling an experimental determination of the concepts presented in this work.”

    From Polarimetric purity and the concept of degree of polarization (2018) · cites this paper as [35]

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Authors
Leppänen, L.-P., Friberg, A. T., & Setälä, T.
Affiliations
University of Eastern Finland (FI)
ORCID
Venue
Journal of the Optical Society of America A
Publisher
Optica Publishing Group
Published
2014-06-27
Volume
31
Issue
7
Pages
1627
ISSN
  • 1084-7529 (ISSN-L)
  • 1520-8532
DOI
10.1364/josaa.31.001627
OpenAlex
W2031944069
Cited by
21
References
28
Citations by year
2025: 2 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 1 · 2018: 4 · 2017: 1 · 2016: 3 · 2015: 4 · 2014: 2
FWCI
1.66
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Journal of the Optical Society of America A (publishedVersion)
  • PubMed (publishedVersion)
Funders
Itä-Suomen Yliopisto
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
  • Physical Sciences › Engineering › Biomedical Engineering › Near-Field Optical Microscopy
  • Physical Sciences › Engineering › Biomedical Engineering › Optical Polarization and Ellipsometry
Keywords
partial polarization, degree of polarization, Stokes parameters, polarization matrix, near field, Gaussian-Schell model, scanning probe microscopy, polarization optics, nanophotonics

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