Butt, H and Dai, Q and Lal, NN and Wilkinson, TD and Baumberg, JJ and Amaratunga, GAJ (2012) Metamaterial filter for the near-visible spectrum. Applied Physics Letters, 101. ISSN 0003-6951Full text not available from this repository.
We demonstrate metamaterials operating in the near-visible regime based on two-dimensional arrays of gold-coated silicon nanopillars. The nanopillar arrays demonstrate a cutoff response at the metamaterial plasma frequency in accordance with theory and can be utilized for filtering applications. A plasma frequency in the near visible region of λ = 1 μm is calculated numerically for an array with a lattice constant of 300 nm and wire radius of 50 nm, with reflection measurements in agreement with numerical calculations. Such structures can be utilized for achieving negative-index based metamaterials for the visible spectrum. © 2012 American Institute of Physics.
|Divisions:||Div B > Photonics|
|Depositing User:||Cron job|
|Date Deposited:||04 Feb 2015 22:11|
|Last Modified:||30 Mar 2015 01:31|