Non-Hermitian optics is a burgeoning field at the intersection of quantum physics,
electrodynamics, and nanophotonics. It provides a new perspective of the role of gain and …

Throughout human history, the control of light, electricity and heat has evolved to become
the cornerstone of various innovations and developments in electrical and electromagnetic …

Geometric arrays of vortices found in various systems owe their regular structure to mutual
interactions within a confined system. In optics, such vortex crystals may form spontaneously …

Engineering light-matter interactions using non-Hermiticity, particularly through spectral
degeneracies known as exceptional points (EPs), is an emerging field with potential …

Quantum technology has made tremendous strides over the past two decades with
remarkable advances in materials engineering, circuit design, and dynamic operation. In …

We consider refractive index sensing with optical bounds states in the continuum (BICs) in
dielectric gratings. Applying a perturbative approach we derived the differential sensitivity …

Exceptional points are singularities of open systems, and among their many remarkable
properties, they provide a way to enhance the responsivity of sensors. Here we show that …

The concept of non-Hermitian physics has inspired numerous intriguing phenomena in
classical wave systems. By introducing judicious arrangements of gain and loss media, non …

Non-Hermitian systems with their spectral degeneracies known as exceptional points (EPs)
have been explored for lasing, controlling light transport, and enhancing a sensor's …

We show that two-dimensional non-Hermitian photonic crystals made of lossy material can
exhibit nontrivial point-gap topology in terms of topological winding in its complex frequency …