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Uniaxial epsilon-near-zero metamaterial for angular filtering and polarization control
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Schematic of an array of nanowires in a dielectric host (adopted from Ref. 25). (b) Scanning electron microscope picture of an array of silver nanowires grown in an anodic alumina membrane—side view of the etched membrane’s wall showing loose and bent nanowires; bar . (c) Bose’s transmitting antenna covered by the polarizing wire grid [Reprinted with permission from D. T. Emerson, Microwave Theory and Techniques, 45(12), 2267–2273 (1997). Copyright 2002, IEEE].

Image of FIG. 2.
FIG. 2.

FWHM of the angular transmittance band (in degrees) as the function of , calculated at , , , and . Inset: transmittance functions (solid) and (dashed) calculated at .

Image of FIG. 3.
FIG. 3.

FWHM of the transmittance peak in p polarization calculated for a model alumina membrane/silver nanowire system as a function of wavelength. Note that FWHM is minimal when . Inset: transmittance functions for p polarization (solid) and s polarization (dashed) in the singular uniaxial regime .

Image of FIG. 4.
FIG. 4.

Experimentally measured angular transmittance profiles in p polarization (trace 1) and s polarization (trace 2).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Uniaxial epsilon-near-zero metamaterial for angular filtering and polarization control