King Y. Fong

TL;DR: The experimental demonstration of an electrostatic-doping-driven phase transition between the hexagonal and monoclinic phases of monolayer molybdenum ditelluride (MoTe2), which opens up new possibilities for developing phase-change devices based on atomically thin membranes.

TL;DR: Optical frequency comb generation from high-quality-factor AlN microring resonators integrated on silicon substrates is reported by engineering the waveguide structure to achieve near-zero dispersion at telecommunication wavelengths and optimizing the phase matching for four-wave mixing.

TL;DR: AlN-on-silicon platform for low loss, wideband optical guiding, as well as its use for achieving simultaneous high optical quality and mechanical quality optomechanical devices Exploiting AlN's inherent second order nonlinearity, they further demonstrate electro-optic modulation and efficient secondharmonic generation in AlN photonic circuits.

TL;DR: GaN has a wideband transparency window covering ultraviolet, visible and infrared wavelengths, and its platform provides a viable route for the on-chip generation of optical wavelengths in both the far infrared and near-UV through a combination of χ2 enabled sum-/difference-frequency processes.

TL;DR: In this article, the authors report the development of an AlN-on-silicon platform for low loss, wide-band optical guiding, as well as its use for achieving simultaneously high-optical quality-factor and high-mechanical-quality-factor optomechanical devices.