2 papers
physics.optics2019
Adiabatic frequency shifting in epsilon near zero materials: The role of group velocity
Jacob B Khurgin, Matteo Clerici, Vincenzo Bruno +9
We investigate adiabatic frequency conversion using epsilon near zero (ENZ) materials and show that while the maximum frequency conversion for a given change of permittivity does n…
physics.optics2015
Time-Varying Metasurfaces and Lorentz Non-Reciprocity
Amr Shaltout, Alexander Kildishev, Vladimir Shalaev
A cornerstone equation of optics, Snell's law, relates the angles of incidence and refraction for light passing through an interface between two media. It is built on two fundament…