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 …

A recent renaissance in Brillouin scattering research has been driven by the increasing
maturity of photonic integration platforms and nanophotonics. The result is a new breed of …

Theoretical models of critical mass have shown how minority groups can initiate social
change dynamics in the emergence of new social conventions. Here, we study an artificial …

The field of cavity optomechanics is reviewed. This field explores the interaction between
electromagnetic radiation and nanomechanical or micromechanical motion. This review …

The phonon is the physical particle representing mechanical vibration and is responsible for
the transmission of everyday sound and heat. Understanding and controlling the phononic …

Non-Hermitian physical systems have attracted considerable attention lately for their
unconventional behaviour around exceptional points (EPs)—spectral singularities at which …

Nonreciprocal components, such as isolators and circulators, provide highly desirable
functionalities for optical circuitry. This motivates the active investigation of mechanisms that …

By exploiting recent developments associated with coupled microcavities, we introduce the
concept of the PT-symmetric phonon laser with balanced gain and loss. This is …

Phonon lasers, which exploit coherent amplifications of phonons, are a means to explore
nonlinear phononics, image nanomaterial structures and operate phononic devices …

There has been an increasing interest in all-optical analogues of electromagnetically
induced transparency and Autler–Townes splitting. Despite the differences in their …