Interactions between light and matter play an instrumental role in spectroscopy, sensing,
quantum information processing and lasers. In most of these applications, light is considered …

This tutorial offers a comprehensive overview of photonic time crystals: artificial materials
whose electromagnetic properties are periodically modulated in time at scales comparable …

Microcavities and nanoresonators have the ability to strongly enhance many light–matter-
interaction processes used in various applications in nano-optics. This enhancement is due …

The Purcell effect is commonly used to increase the spontaneous emission rate by modifying
the local environment of a light emitter. Here, we propose a silicon dielectric cuboid …

Control over transition rates between spin states of emitters is crucial in a wide variety of
fields ranging from quantum information science to the nanochemistry of free radicals. We …

Optical nanocavities have revolutionized the manipulation of radiative properties of
molecular and semiconductor emitters. Here, we investigate the amplified …

Recent advances in high sensitivity spectroscopy have made it possible, in combination with
accurate theoretical predictions, to observe, for the first time, very weak electric quadrupole …

In the vicinity of plasmonic nanostructures that support highly confined light fields,
spontaneous emission processes, such as two-photon spontaneous emission (TPSE) …

Efficient excitation of a triplet (T1) state of a molecule has far‐reaching effects on
photochemical reaction and energy conversion systems. Because the optical transition from …

We present a general framework that computes the two-photon spontaneous emission rate
of a quantum emitter close to an arbitrary photonic structure beyond the dipolar …