Structures with near-zero parameters (for example, media with near-zero relative permittivity
and/or relative permeability, and thus a near-zero refractive index) exhibit a number of …

In this Letter, we discuss the general problem of exciting radiationless field distributions in
open cavities, with the goal of clarifying recent findings on this topic. We point out that the …

Controlling the emission and interaction properties of quantum emitters (QEs) embedded
within an optical cavity is a key technique in engineering light-matter interactions at the …

Confining electromagnetic energy is crucial to enhance light‐matter interactions, with
important implications for science and technology. Here, the opportunities offered by …

We consider several intriguingly connected topics in the theory of wave propagation:
geometrical characterizations of radiationless sources, nonradiating incident waves, interior …

An iterative/recursive algorithm is studied for recovering unknown sources of acoustic field
with multifrequency measurement data. Under additional regularity assumptions on source …

This book is devoted to the mathematical study of geometrical inverse scattering problems.
In the physical setup, one sends incident wave fields to interrogate an unknown/inaccessible …

On an electromagnetic problem in a corner and its applications Page 1 ANALYSIS & PDE msp
Volume 14 No. 7 2021 EMILIA BLÅSTEN, HONGYU LIU AND JINGNI XIAO ON AN …

The inverse source problem where an unknown source is to be identified from knowledge of
its radiated wave is studied. The focus is placed on the effect that multi-frequency data have …

In this work, we first derive the nonradiating anapole condition with a straightforward
theoretical demonstration exploiting one of the Devaney-Wolf theorems for nonradiating …