Abstract: The Luneburg lens is of significant interest for microwave and optical devices due to its wide-angle focusing properties. However, the inhomogeneous refractive index of the lens is ...

Abstract: Collimation and focusing are generally more common in optics field. We demonstrate hyperbolic metamaterials (HMMs) with very flat isofrequency surfaces in wavevector space for tunneling of ...

What is a fast car? Or when discussing drag racing, a quick car? We suppose it depends on when your time machine drops you off. In the 1960s Super Stock and Pro Stock drag cars were running in the ...