Nonlinear photonic chips can generate and process signals all-optically with far superior
performance to that possible electronically—particularly with respect to speed. Although …

CMOS platforms with a high nonlinear figure of merit are highly sought after for high
photonic quantum efficiencies, enabling functionalities not possible from purely linear effects …

CMOS platforms operating at the telecommunications wavelength either reside within the
highly dissipative two-photon regime in silicon-based optical devices, or possess small …

The high refractive index of hydrogenated amorphous silicon (a‐Si: H) at optical frequencies
is an essential property for the efficient modulation of the phase and amplitude of light …

We demonstrate optically stable amorphous silicon nanowires with both high nonlinear
figure of merit (FOM) of~ 5 and high nonlinearity Re (γ)= 1200W^− 1m^− 1. We observe no …

We propose hydrogenated amorphous silicon nanowires as a platform for nonlinear optics
in the telecommunication wavelength range. Extraction of the nonlinear parameter of these …

We utilize cross-phase modulation to observe all-optical switching in microring resonators
fabricated with hydrogenated amorphous silicon (a-Si: H). Using 2.7-ps pulses from a mode …

We demonstrate wavelength conversion through nonlinear parametric processes in
hydrogenated amorphous silicon (a-Si: H) with maximum conversion efficiency of− 13?? dB …

We demonstrate mid-infrared (MIR) frequency combs at 10 GHz repetition rate via intra-
pulse difference-frequency generation (DFG) in quasi-phase-matched nonlinear media. Few …

In this paper we present our recent work on mid-infrared photonic integrated circuits for
spectroscopic sensing applications. We discuss the use of silicon-based photonic integrated …