Twisting light with hyperbolic metamaterials

Metamaterials controlled with light.

We suggest and verify experimentally the concept of functional metamaterials whose properties are remotely controlled by illuminating the metamaterial with a pattern of visible light. In such metamaterials arbitrary gradients of the effective material parameters can be achieved simply by adjusting the profile of illumination. We fabricate such light-tunable microwave metamaterials and demonstra...

Hyperbolic transmission-line metamaterials

Articles you may be interested in Omega transmission lines with applications to effective medium models of metamaterials Experimental verification of field rotating with invisibility by full tensor transmission-line metamaterials Appl. Dark Schrödinger solitons and harmonic generation in left-handed nonlinear transmission line Anomalous reflection and refraction in anisotropic metamaterial real...

Magnetic hyperbolic optical metamaterials.

Strongly anisotropic media where the principal components of electric permittivity or magnetic permeability tensors have opposite signs are termed as hyperbolic media. Such media support propagating electromagnetic waves with extremely large wave vectors exhibiting unique optical properties. However, in all artificial and natural optical materials studied to date, the hyperbolic dispersion orig...

Control of absorption with hyperbolic metamaterials

Critical coupling with graphene-based hyperbolic metamaterials

In order to effectively realize and control the critical coupling, a graphene-based hyperbolic metamaterial has been proposed to replace the absorbing thin film in the critically coupled resonance structure. Our calculations demonstrate that the critical coupling effect (near-perfect light absorption) can be achieved at the near-infrared wavelength by using this layered structure, while the cri...