As the length scales of materials decrease, the heterogeneities associated with interfaces
become almost as important as the surrounding materials. This has led to extensive studies …

Anisotropy has been a key property employed in the design of optical components for
hundreds of years. However, in recent years there has been growing interest in polaritons …

In recent years, there has been significant fundamental research into surface phonon
polaritons, owing to their ability to compress light to extremely small dimensions, low losses …

In the Reststrahlen region, between the transverse and longitudinal phonon frequencies,
polar dielectric materials respond metallically to light, and the resulting strong light–matter …

2D WSe2 have attracted widespread attentions as an ideal platform for new type
optoelectronic and nanoelectronics applications. Understanding the intrinsic thickness …

When midinfrared light interacts with nanoscale polar dielectric structures, optical phonon
propagation cannot be ignored, leading to a rich nonlocal phenomenology that we have …

Piezoelectric nature of wurtzite binary nitrides (AlN, GaN and InN) has been extensively
utilized in different devices and experiments from DC to microwaves frequencies. At optical …

This program demonstrated new types of materials and interactions for phonon polaritons.
Under the right conditions, polar dielectric materials can have reststrahlen bands that …