Silicon has been the material of choice of the photonics industry over the last decade due to
its easy integration with silicon electronics, high index contrast, small footprint, and low cost …

In this article, we review our recent work on mid-infrared (mid-IR) photonic materials and
devices fabricated on silicon for on-chip sensing applications. Pedestal waveguides based …

With continued steep growth in the volume of data transmitted over optical networks there is
a widely recognized need for more sophisticated photonics technologies to forestall a …

Broadband mid-infrared (mid-IR) spectroscopy applications could greatly benefit from
today's well-developed, highly scalable silicon photonics technology; however, this platform …

We demonstrate an on-chip sensor for room-temperature detection of methane gas using a
broadband spiral chalcogenide glass waveguide coupled with off-chip laser and detector …

Besides being the foundational material for microelectronics, crystalline silicon has long
been used for the production of infrared lenses and mirrors. More recently, silicon has …

Germanium-on-silicon thermo-optic phase shifters are demonstrated in the 5 μm wavelength
range. Basic phase shifters require 700 mW of power for a 2π phase shift. The required …

One promising application of photonics to astronomical instrumentation is the miniaturization
of near-infrared (NIR) spectrometers for large ground-and space-based astronomical …

Germanium based photonic devices can play a significant role in several applications,
particularly in the so-called fingerprint wavelength region. Here, we review our recent results …

Silicon photonics has been a very buoyant research field in the last several years mainly
because of its potential for telecom and datacom applications. However, prospects of using …