The emergence of silicon photonics over the past two decades has established silicon as a
preferred substrate platform for photonic integration. While most silicon-based photonic …

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 …

Nanophotonic waveguides that implement long optical pathlengths on chips are promising
to enable chip-scale gas sensors. Nevertheless, current absorption-based waveguide …

Silicon has attracted great interest as a platform for both linear and nonlinear integrated
photonics for over 15 years. While its primary applications have been in the telecom window …

Optical devices are necessary to meet the anticipated future requirements for ultrafast and
ultrahigh bandwidth communication and computing. All optical information processing can …

The global trends of urbanization and industrialization have given rise to critical
environmental and air pollution issues that often receive insufficient attention. Among the …

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 …

The mid‐infrared (MIR) band holds significant promise in various fields, including thermal
imaging, spectroscopy sensing, infrared countermeasures, and free‐space communication …

We demonstrate low-loss Ge-rich Si 0.2 Ge 0.8 waveguides on Si 1− x Ge x (x from 0 to
0.79) graded substrates operating in the mid-infrared wavelength range at λ= 4.6 μm …

In this paper, we demonstrate silicon-on-insulator (SOI) channel waveguides with
propagation loss and= 10 bends with bending loss as low as 2 dB/cm and 0.02 dB/90 in the …