The engineering of the spatial and temporal properties of both the electric permittivity and
the refractive index of materials is at the core of photonics. When vanishing to zero, those …

Light absorption near a surface of conductive materials and nanostructures leads to the
excitation of nonequilibrium, high-energy charge carriers: electrons above the Fermi level or …

Ultrafast light-induced spatiotemporal dynamics in metals in the form of electron and/or
phonon heating is a fundamental physical process that has tremendous practical relevance …

Low-electron-density Drude (LEDD) materials such as indium tin oxide (ITO) are receiving
considerable attention for their combination of CMOS compatibility, unique epsilon-near …

Ultrafast nonlinearity, which results in modulation of the linear optical response, is a basis for
the development of time-varying media, in particular those operating in the epsilon-near …

We address challenges in characterizing changes in permittivity and refractive index beyond
standard perturbative methods with special attention given to transparent conductive oxides …

Nonlinear epsilon-near-zero (ENZ) nanodevices featuring vanishing permittivity and CMOS-
compatibility are attractive solutions for large-scale-integrated systems-on-chips. Such …

Silicon photonics has many attractive features but faces a major issue: inefficient and slow
photodetection in the telecom range. New metal–semiconductor Schottky photodetectors …

On‐chip photodetectors are essential components in optical communications as they
convert light into an electrical signal. Photobolometers are a type of photodetector that …

Exotic forms of wave control have been emerging by engineering matter in space and time.
In this framework, temporal photonic interfaces, ie, abrupt changes in the electromagnetic …