Electromagnetically induced transparency (EIT) originates from quantum physics, where a
narrow transparent peak appears in the opaque band due to the destructive interference …

Since the performance of electronic circuits is becoming rather limited in face of intensively
increasing of amount of information and related operations, all‐optical processing offers a …

We present a quasinormal-mode (QNM) theory for coupled loss and gain resonators
working in the vicinity of an exceptional point. Assuming linear media, which can be fully …

Non-Hermiticity has recently emerged as a rapidly developing field due to its exotic
characteristics related to open systems, where the dissipation plays a critical role. In the …

Dynamic tuning of metasurfaces with active components is a prospective solution to improve
their operation bandwidth. Here, we propose and experimentally demonstrate controllable …

In this work, a dynamically tunable and polarization-insensitive electromagnetically induced
transparency-like (EIT-like) and dual-band absorption based on graphene and vanadium …

Phase change materials, especially Ge 2 Sb 2 Te 5 (GST), play an important role in the
design of dynamic all-dielectric metasurface due to its flexibility and adjustability. And its non …

The performance of metamaterial is limited to a designed narrow band due to its resonant
nature, it is highly desirable to incorporate active inclusions in metamaterials to extend the …

Electromagnetically induced transparency (EIT) and electromagnetically induced absorption
(EIA) have many applications, especially for achieving slow light and fast light. EIT and EIA …

The active control of artificially structured metasurfaces is a promising route for solving the
operation bandwidth limitation of metasurfaces due to their resonant nature. Herein, the …