In this review, we summarize and discuss our recent studies of subwavelength grating
(SWG) structures for engineering the refractive index of silicon microphotonic waveguides …

Moore's Law has set great expectations that the performance of information technology will
improve exponentially until at least the end of this decade. Although the physics of silicon …

We report on the experimental demonstration of ultrafast all-optical switching and
wavelength down-conversion based on a novel nonlinear Mach-Zehnder interferometer with …

The performance of multimode interference (MMI) couplers in silicon waveguides is limited
by the high lateral refractive index contrast. Here we propose the use of subwavelength …

We demonstrate contradirectional couplers in silicon-on-insulator rib waveguides using a
CMOS compatible technology, in which a periodic dielectric perturbation is introduced in the …

We demonstrate, by experiment and numerical calculations, temperature-independent
subwavelength grating waveguides with a periodic composite core composed of alternating …

Frequency-domain Fourier modal methods have recently evolved into efficient tools for
rigorous numerical modeling of a wide class of photonic and plasmonic structures and …

In this paper we focus on the discussion of two recent unique applications of the finite-
difference time-domain (FDTD) simulation method to the design and modeling of advanced …

Athermal silicon subwavelength grating waveguides Page 1 Athermal Silicon Subwavelength
Grating Waveguides Marc Ibrahim, Jens H. Schmid†, Pavel Cheben†, Jean Lapointe† …

State-of-the-art nanophotonic devices based on semiconductor technology use total internal
reflection or the photonic bandgap effect to reduce the waveguide core dimensions down to …