Description |
In the past few years, there has been considerable emphasis ondeveloping new material platforms for realizing nanophotonic devices with better performance efficiency along withcharacteristics such as dynamic tunability. In this talk, I will discuss our work in this direction using different material systems. In particular, I will talk about how topologically protected surface states can be accessed in the optical spectral region and their use for metamaterial and quantum optics applications. I will then discuss our work on perovskite-based dielectric metasurfaces where we have demonstrated structural color tuning across the visible spectral region. Finally, I will talk about the use of thin non-volatile chalcogenide layers to create a tunable anisotropic nanocomposite in which the spectral regime of negative refraction can be switched from the near-infrared to the visible.
|