Angle-insensitive plasmonic nanorod metamaterial-based band-pass optical filters
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 30, 2021
- Source ID
- 10.1364/oe.418268
Entities
People
- Anatoly Zayats
- Brian Wells
- Francesco Lotti
- Mazhar E. Nasir
- Viktor Podolskiy
Organizations
- Army Research Office
- Defence Science and Technology Laboratory
- Engineering and Physical Sciences Research Council
- King's College London
- University of Hartford
- University of Massachusetts Lowell