Germanium (Ge) has played a key role in silicon photonics as an enabling material for
datacom applications. Indeed, the unique properties of Ge have been leveraged to develop …

Group IV photonics hold great potential for nonlinear applications in the near-and mid-
infrared (IR) wavelength ranges, exhibiting strong nonlinearities in bulk materials, high index …

High-index dielectric nanostructures can support optical resonances of electric and
magnetic character with ultralow linear absorption. In contrast to plasmonics, they can be …

We propose a photonic crystal nanocavity design with self-similar electromagnetic boundary
conditions, achieving ultrasmall mode volume (V eff). The electric energy density of a cavity …

The symmetry of crystalline silicon inhibits a second-order optical nonlinear susceptibility, χ
(2), in complementary metal–oxide–semiconductor-compatible silicon photonic platforms …

Nonlinear optics is a well-established field of research that traditionally relies on the
interaction of light with macroscopic nonlinear media over distances significantly greater …

We experimentally demonstrate supercontinuum (SC) generation in a germanium-on-silicon
waveguide. This waveguide exhibits propagation loss between 1.2 dB/cm and 1.35 dB/cm in …

The coupling between light and collective oscillations of free carriers at metallic surfaces
and nanostructures is at the origin of one of the main fields of nanophotonics: plasmonics …

The field of hybrid optical fibers is one of the most active research areas in current fiber
optics and has the vision of integrating sophisticated materials inside fibers, which are not …

We present strong enhancement of third harmonic generation in an amorphous silicon
metasurface consisting of elliptical nano resonators. We show that this enhancement …