This study proposes using double-layer wire-grid structures to create narrow-band, perfect plasmonic absorbers, which depend on polarization, for the short-wavelength visible and near-ultraviolet regions of the electromagnetic spectrum. A rigorous coupled-wave analysis reveals that the maximum absorption attained using Ag and Al is ~90% at 450 nm and 375 nm. Experiments using Ag yielded results similar to those predicted by simulations. These results demonstrate that narrow-band perfect plasmonic absorbers, which depend on the polarization, can be realized at 450 nm and 375 nm using Ag or Al.

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The full text of this article is available to read as a PDF.
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Posted 07 Jan, 2021
On 14 Feb, 2021
Received 27 Jan, 2021
Received 24 Jan, 2021
On 12 Jan, 2021
On 12 Jan, 2021
On 12 Jan, 2021
Invitations sent on 11 Jan, 2021
On 07 Jan, 2021
On 07 Jan, 2021
On 03 Jan, 2021
On 30 Dec, 2020
Posted 07 Jan, 2021
On 14 Feb, 2021
Received 27 Jan, 2021
Received 24 Jan, 2021
On 12 Jan, 2021
On 12 Jan, 2021
On 12 Jan, 2021
Invitations sent on 11 Jan, 2021
On 07 Jan, 2021
On 07 Jan, 2021
On 03 Jan, 2021
On 30 Dec, 2020
This study proposes using double-layer wire-grid structures to create narrow-band, perfect plasmonic absorbers, which depend on polarization, for the short-wavelength visible and near-ultraviolet regions of the electromagnetic spectrum. A rigorous coupled-wave analysis reveals that the maximum absorption attained using Ag and Al is ~90% at 450 nm and 375 nm. Experiments using Ag yielded results similar to those predicted by simulations. These results demonstrate that narrow-band perfect plasmonic absorbers, which depend on the polarization, can be realized at 450 nm and 375 nm using Ag or Al.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9
The full text of this article is available to read as a PDF.
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