| Autor: |
Wells BM, Lotti F, Nasir ME, Zayats AV, Podolskiy VA |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2021 Apr 12; Vol. 29 (8), pp. 11562-11569. |
| DOI: |
10.1364/OE.418268 |
| Abstrakt: |
We demonstrate, experimentally and theoretically, a new class of angle-insensitive band-pass optical filters that utilize anisotropy of plasmonic nanorod metamaterials, in both ε ≃ -1 and epsilon-near-infinity regimes, to minimize dependence of optical path on the incident angle. The operating wavelength and bandwidth of the filter can be engineered by controlling the geometry of the metamaterial. Experimental results are in agreement with full wave numerical and analytical solutions of the Maxwell's equations. Theoretical simulations show that performance of the systems can be further improved by replacing metallic mirrors with dielectric stacks. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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