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Journal Article

Microsphere kinematics from the polarization of tightly focused nonseparable light

MPS-Authors
/persons/resource/persons201015

Berg-Johansen,  Stefan
Christoph Marquardt Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of Optics, Information and Photonics, University Erlangen-Nuremberg;

/persons/resource/persons201139

Neugebauer,  Martin
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of Optics, Information and Photonics, University Erlangen-Nuremberg;

/persons/resource/persons200999

Aiello,  Andrea
Genes Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of Optics, Information and Photonics, University Erlangen-Nuremberg;

/persons/resource/persons201008

Banzer,  Peter
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of Optics, Information and Photonics, University Erlangen-Nuremberg;
Institute of Physics, University of Graz, NAWI Graz;

/persons/resource/persons201126

Marquardt,  Christoph
Christoph Marquardt Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of Optics, Information and Photonics, University Erlangen-Nuremberg;

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Fulltext (public)

oe-29-8-12429.pdf
(Publisher version), 6MB

Supplementary Material (public)

5168396.pdf
(Supplementary material), 1005KB

Citation

Berg-Johansen, S., Neugebauer, M., Aiello, A., Leuchs, G., Banzer, P., & Marquardt, C. (2021). Microsphere kinematics from the polarization of tightly focused nonseparable light. Optics Express, 29(8), 12429-12439. doi:10.1364/OE.419540.


Cite as: https://hdl.handle.net/21.11116/0000-0009-C16A-6
Abstract
Recently, it was shown that vector beams can be utilized for fast kinematic sensing via measurements of their global polarization state [Optica 2, 864 (2015)]. The method relies on correlations between the spatial and polarization degrees of freedom of the illuminating field which result from its nonseparable mode structure. Here, we extend the method to the nonparaxial regime. We study experimentally and theoretically the far-field polarization state generated by the scattering of a dielectric microsphere in a tightly focused vector beam as a function of the particle position. Using polarization measurements only, we demonstrate position sensing of a Mie particle in three dimensions. Our work extends the concept of back focal plane interferometry and highlights the potential of polarization analysis in optical tweezers employing structured light.