Multifunctional Metamirror

Polarization Splitting and Focusing

Publikation: Bidrag til tidsskriftLetterForskningpeer review

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Resumé

Metasurfaces are paving the way to improve traditional optical components by integrating multiple functionalities into one optically flat metasurface design. We demonstrate the implementation of a multifunctional gap surface plasmon-based metasurface that in reflection mode splits orthogonal linear light polarizations and focuses them into different focal spots. The fabricated configuration consists of 50 nm thick gold nanobricks with different lateral dimensions organized in an array of 240 nm × 240 nm unit cells on top of a 50 nm thick silicon dioxide layer, which is deposited on an optically thick reflecting gold substrate. Our device features high efficiency (up to ∼65%) and polarization extinction ratio (up to ∼30 dB), exhibiting broadband response in the near-infrared band (750-950 nm wavelength) with the focal length dependent on the wavelength of the incident light. The proposed optical component can be forthrightly integrated into photonic circuits or fiber-optic devices.

OriginalsprogEngelsk
TidsskriftACS Photonics
Vol/bind5
Udgave nummer5
Sider (fra-til)1648-1653
ISSN2330-4022
DOI
StatusUdgivet - 2018

Fingeraftryk

Optical Devices
Gold
Optics and Photonics
Polarization
gold
Equipment and Supplies
Wavelength
polarization
Light polarization
wavelengths
Silicon Dioxide
Photonics
Fiber optics
fiber optics
extinction
Silica
photonics
silicon dioxide
broadband
Infrared radiation

Citer dette

@article{06b38b950d1f49b8930fbb076d9c049e,
title = "Multifunctional Metamirror: Polarization Splitting and Focusing",
abstract = "Metasurfaces are paving the way to improve traditional optical components by integrating multiple functionalities into one optically flat metasurface design. We demonstrate the implementation of a multifunctional gap surface plasmon-based metasurface that in reflection mode splits orthogonal linear light polarizations and focuses them into different focal spots. The fabricated configuration consists of 50 nm thick gold nanobricks with different lateral dimensions organized in an array of 240 nm × 240 nm unit cells on top of a 50 nm thick silicon dioxide layer, which is deposited on an optically thick reflecting gold substrate. Our device features high efficiency (up to ∼65{\%}) and polarization extinction ratio (up to ∼30 dB), exhibiting broadband response in the near-infrared band (750-950 nm wavelength) with the focal length dependent on the wavelength of the incident light. The proposed optical component can be forthrightly integrated into photonic circuits or fiber-optic devices.",
keywords = "flat optics, gap surface plasmons, gradient metasurfaces, plasmonics",
author = "Sergejs Boroviks and Deshpande, {Rucha A.} and Mortensen, {N. Asger} and Bozhevolnyi, {Sergey I.}",
year = "2018",
doi = "10.1021/acsphotonics.7b01091",
language = "English",
volume = "5",
pages = "1648--1653",
journal = "A C S Photonics",
issn = "2330-4022",
publisher = "American Chemical Society",
number = "5",

}

Multifunctional Metamirror : Polarization Splitting and Focusing. / Boroviks, Sergejs; Deshpande, Rucha A.; Mortensen, N. Asger; Bozhevolnyi, Sergey I.

I: ACS Photonics, Bind 5, Nr. 5, 2018, s. 1648-1653.

Publikation: Bidrag til tidsskriftLetterForskningpeer review

TY - JOUR

T1 - Multifunctional Metamirror

T2 - Polarization Splitting and Focusing

AU - Boroviks, Sergejs

AU - Deshpande, Rucha A.

AU - Mortensen, N. Asger

AU - Bozhevolnyi, Sergey I.

PY - 2018

Y1 - 2018

N2 - Metasurfaces are paving the way to improve traditional optical components by integrating multiple functionalities into one optically flat metasurface design. We demonstrate the implementation of a multifunctional gap surface plasmon-based metasurface that in reflection mode splits orthogonal linear light polarizations and focuses them into different focal spots. The fabricated configuration consists of 50 nm thick gold nanobricks with different lateral dimensions organized in an array of 240 nm × 240 nm unit cells on top of a 50 nm thick silicon dioxide layer, which is deposited on an optically thick reflecting gold substrate. Our device features high efficiency (up to ∼65%) and polarization extinction ratio (up to ∼30 dB), exhibiting broadband response in the near-infrared band (750-950 nm wavelength) with the focal length dependent on the wavelength of the incident light. The proposed optical component can be forthrightly integrated into photonic circuits or fiber-optic devices.

AB - Metasurfaces are paving the way to improve traditional optical components by integrating multiple functionalities into one optically flat metasurface design. We demonstrate the implementation of a multifunctional gap surface plasmon-based metasurface that in reflection mode splits orthogonal linear light polarizations and focuses them into different focal spots. The fabricated configuration consists of 50 nm thick gold nanobricks with different lateral dimensions organized in an array of 240 nm × 240 nm unit cells on top of a 50 nm thick silicon dioxide layer, which is deposited on an optically thick reflecting gold substrate. Our device features high efficiency (up to ∼65%) and polarization extinction ratio (up to ∼30 dB), exhibiting broadband response in the near-infrared band (750-950 nm wavelength) with the focal length dependent on the wavelength of the incident light. The proposed optical component can be forthrightly integrated into photonic circuits or fiber-optic devices.

KW - flat optics

KW - gap surface plasmons

KW - gradient metasurfaces

KW - plasmonics

U2 - 10.1021/acsphotonics.7b01091

DO - 10.1021/acsphotonics.7b01091

M3 - Letter

VL - 5

SP - 1648

EP - 1653

JO - A C S Photonics

JF - A C S Photonics

SN - 2330-4022

IS - 5

ER -