Metasurface-based patterned wave plates for VIS applications

Stock, Carsten; Siefke, Thomas; Zeitner, Uwe D.

doi:10.1364/josab.36.000d97

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…The nano-optical retarder array and wire grid polarizer are grating type metasurfaces with periods smaller than the applied wavelength. Their fabrication is well established in our work group [8,9]. For applications in the visible wavelength regime we use a broadband iridium wire grid polarizer.…”

Section: Setup and Fabrication Of The Nanooptical Elementsmentioning

confidence: 99%

Fully integrated stokes snapshot imaging polarimeter

et al. 2020

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Section: Setup and Fabrication Of The Nanooptical Elementsmentioning

confidence: 99%

Fully integrated stokes snapshot imaging polarimeter

et al. 2020

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“…Hence, the transmittance of such structures strongly depend on the polarisation direction, so that these elements can be used as linear polarizers (LP). If the grating material is dielectric the effective refractive index depends on the polarisation direction, hence such structures can be used as quarter wave plates (QWP) [8].…”

Section: Introductionmentioning

confidence: 99%

“…3, an SEM image of a cross section of one pixel of such a stacked nano-optical device is shown. The lower grating layer is the QWP structure consisting of titanium dioxide [8,10]. The upper layer is the LP structure consisting of iridium [11].…”

Section: Introductionmentioning

confidence: 99%

Fabrication influences on a miniaturised stokes polarimeter consisting of stacked nano-optical wire grid polarizer and retarders

Siefke

Walther²,

Stock³

et al. 2022

EPJ Web Conf.

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The polarization properties of light can be fully controlled with nano-optical wire grid polarizers and artificial birefringent grating structures. We demonstrate an integrated polarimeter based on stacked layers of such elements. However, the optical performance of such elements is fundamentally limited and may be further altered by deviations arising from the fabrication processes. In this contribution we investigate the influences on the polarimetry performance for such a device.

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Loss compensation in metamaterials and plasmonics with virtual gain [Invited]

Ghoshroy

Özdemir

Güney

2020

Opt. Mater. Express

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Metamaterials and plasmonics potentially offer an ultimate control of light to enable a rich number of non-conventional devices and a testbed for many novel physical phenomena. However, optical loss in metamaterials and plasmonics is a fundamental challenge rendering many conceived applications not viable in practical settings. Many approaches have been proposed so far to mitigate losses, including geometric tailoring, active gain media, nonlinear effects, metasurfaces, dielectrics, and 2D materials. Here, we review recent efforts on the less explored and unique territory of “virtual gain” as an alternative approach to combat optical losses. We define the virtual gain as the result of any extrinsic amplification mechanism in a medium. Our aim is to accentuate virtual gain not only as a promising candidate to address the material challenge, but also as a design concept with broader impacts.

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Metasurface-based patterned wave plates for VIS applications

Cited by 4 publications

References 29 publications

Fully integrated stokes snapshot imaging polarimeter

Fully integrated stokes snapshot imaging polarimeter

Fabrication influences on a miniaturised stokes polarimeter consisting of stacked nano-optical wire grid polarizer and retarders

Loss compensation in metamaterials and plasmonics with virtual gain [Invited]

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