The interaction between cavity field and atoms plays an important role in exploring the
abundant non-Hermitian physics and constructing powerful wave function devices. In this …

Exceptional points are spectral singularities of open systems, where several eigenvalues
and eigenvectors coalesce. In photonics, they are associated to remarkable phenomena …

Exceptional points are the most intriguing features of non-Hermitian photonics, providing
clues for enhanced sensitivity, asymmetric light reflection, laser-absorber effect, topological …

Virtual gain refers to the simulation of real light amplification using radiation with
exponentially decaying amplitude so that its complex frequency corresponds to the …

All-dielectric non-Hermitian structures make it possible to obtain unique effect like the
appearance of the exceptional points (EP). A system at EP is sensitive to a small …

Here we discuss the optimization of mixing in finite linear and circular Rudner–Levitov
lattices (Su–Schrieffer–Heeger lattices with a dissipative sublattice). We show that the …

The combination of various modern photonic effects and materials is a promising area of
research that holds many interesting applications. This work shows the interaction of a …

In this work, radiative transitions in nickel nanoclusters are studied based on the Thomas-
Fermi method and the semiclassical approximation. It is shown that the compactness of the …

In this work, the optical forces acting on a dimer composed of nanoparticles are considered.
The calculation of optical forces (Lorentz forces) is carried out on the basis of …

The work examines the process of second harmonic generation in nanoparticles made from
materials with a high refractive index. Second harmonic is a phenomenon in which photons …