Gap‐surface plasmon metasurfaces for broadband circular‐to‐linear polarization conversion and vector vortex beam generation

Jacob. T. Heiden, Fei Ding, Jes Linnet, Yuanqing Yang, Jonas Beermann, Sergey I. Bozhevolnyi

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

The ability to control and manipulate the polarization state of light is of crucial importance in many modern optical applications ranging from quantum technologies to biomedical sciences. Here, an ultrathin quarter‐wave plate (QWP) with a gap‐surface plasmon metasurface is designed, fabricated, and experimentally demonstrated, allowing for broadband and efficient conversion between circular and linear polarizations with ≈85% average reflectance across a 200 nm wide bandwidth in the near‐infrared range (750–950 nm). Based on the QWP design, a general method is further derived to generate vector vortex beams (VVBs) that possess spatially varied distributions of the polarization vector and carry specified orbital angular momentums by using space‐variant QWP unit cells. The fabricated metasurface exhibits highly efficient VVB generation over a wavelength range from 750 to 950 nm, with average efficiencies of ≈72% and ≈68% for the right circularly polarized and left circularly polarized incident light, respectively. The developed approach allows compact, cost‐effective, and high‐performance polarization converters to be realized, paving the way for the ultimate miniaturization of optical devices with arbitrary control of light fields.
OriginalsprogEngelsk
Artikelnummer1801414
TidsskriftAdvanced Optical Materials
Vol/bind7
Udgave nummer9
Antal sider9
ISSN2195-1071
DOI
StatusUdgivet - 3. maj 2019

Fingeraftryk

Vortex flow
vortices
Polarization
broadband
polarization
miniaturization
circular polarization
linear polarization
converters
Angular momentum
angular momentum
Optical devices
bandwidth
reflectance
orbitals
cells
Bandwidth
wavelengths
Wavelength

Citer dette

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title = "Gap‐surface plasmon metasurfaces for broadband circular‐to‐linear polarization conversion and vector vortex beam generation",
abstract = "The ability to control and manipulate the polarization state of light is of crucial importance in many modern optical applications ranging from quantum technologies to biomedical sciences. Here, an ultrathin quarter‐wave plate (QWP) with a gap‐surface plasmon metasurface is designed, fabricated, and experimentally demonstrated, allowing for broadband and efficient conversion between circular and linear polarizations with ≈85{\%} average reflectance across a 200 nm wide bandwidth in the near‐infrared range (750–950 nm). Based on the QWP design, a general method is further derived to generate vector vortex beams (VVBs) that possess spatially varied distributions of the polarization vector and carry specified orbital angular momentums by using space‐variant QWP unit cells. The fabricated metasurface exhibits highly efficient VVB generation over a wavelength range from 750 to 950 nm, with average efficiencies of ≈72{\%} and ≈68{\%} for the right circularly polarized and left circularly polarized incident light, respectively. The developed approach allows compact, cost‐effective, and high‐performance polarization converters to be realized, paving the way for the ultimate miniaturization of optical devices with arbitrary control of light fields.",
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author = "Heiden, {Jacob. T.} and Fei Ding and Jes Linnet and Yuanqing Yang and Jonas Beermann and Bozhevolnyi, {Sergey I.}",
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Gap‐surface plasmon metasurfaces for broadband circular‐to‐linear polarization conversion and vector vortex beam generation. / Heiden, Jacob. T.; Ding, Fei; Linnet, Jes; Yang, Yuanqing; Beermann, Jonas; Bozhevolnyi, Sergey I.

I: Advanced Optical Materials, Bind 7, Nr. 9, 1801414, 03.05.2019.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Gap‐surface plasmon metasurfaces for broadband circular‐to‐linear polarization conversion and vector vortex beam generation

AU - Heiden, Jacob. T.

AU - Ding, Fei

AU - Linnet, Jes

AU - Yang, Yuanqing

AU - Beermann, Jonas

AU - Bozhevolnyi, Sergey I.

PY - 2019/5/3

Y1 - 2019/5/3

N2 - The ability to control and manipulate the polarization state of light is of crucial importance in many modern optical applications ranging from quantum technologies to biomedical sciences. Here, an ultrathin quarter‐wave plate (QWP) with a gap‐surface plasmon metasurface is designed, fabricated, and experimentally demonstrated, allowing for broadband and efficient conversion between circular and linear polarizations with ≈85% average reflectance across a 200 nm wide bandwidth in the near‐infrared range (750–950 nm). Based on the QWP design, a general method is further derived to generate vector vortex beams (VVBs) that possess spatially varied distributions of the polarization vector and carry specified orbital angular momentums by using space‐variant QWP unit cells. The fabricated metasurface exhibits highly efficient VVB generation over a wavelength range from 750 to 950 nm, with average efficiencies of ≈72% and ≈68% for the right circularly polarized and left circularly polarized incident light, respectively. The developed approach allows compact, cost‐effective, and high‐performance polarization converters to be realized, paving the way for the ultimate miniaturization of optical devices with arbitrary control of light fields.

AB - The ability to control and manipulate the polarization state of light is of crucial importance in many modern optical applications ranging from quantum technologies to biomedical sciences. Here, an ultrathin quarter‐wave plate (QWP) with a gap‐surface plasmon metasurface is designed, fabricated, and experimentally demonstrated, allowing for broadband and efficient conversion between circular and linear polarizations with ≈85% average reflectance across a 200 nm wide bandwidth in the near‐infrared range (750–950 nm). Based on the QWP design, a general method is further derived to generate vector vortex beams (VVBs) that possess spatially varied distributions of the polarization vector and carry specified orbital angular momentums by using space‐variant QWP unit cells. The fabricated metasurface exhibits highly efficient VVB generation over a wavelength range from 750 to 950 nm, with average efficiencies of ≈72% and ≈68% for the right circularly polarized and left circularly polarized incident light, respectively. The developed approach allows compact, cost‐effective, and high‐performance polarization converters to be realized, paving the way for the ultimate miniaturization of optical devices with arbitrary control of light fields.

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KW - gap-surface plasmon metasurfaces

KW - vector vortex beams

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DO - 10.1002/adom.201801414

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JO - Advanced Optical Materials

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