Coherent metamaterials as a platform for passive and gain-assisted photonic devices
Nikolay I. Zheludev, V.A. Fedotov, Nikitas Papasimakis +2 more
We demonstrate a new class of "coherent" metamaterials, where narrow band EIT-like transmission/reflection resonances correspond to a truly collective response of the entire ordered metamaterial array. The resonances appear as a result of coherent excitations of strongly interacting ordered meta-molecules and are controlled by the size of the array. Coherent maetamaterials provide a promising platform for various intriguing applications including slow-light and polarization controlling devices and the "lasing spaser", which we illustrate in a number of microwave, THz and optical experiments. Also, for the first time we experimentally show that resonant properties and losses in a photonic version of the metamaterial can be controlled through optical gain medium. (from session titled: Metamaterials - from modelling and fabrication to application).
•Nov 30, 2009•0 citations