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 …

Germanium (Ge) has played a key role in silicon photonics as an enabling material for
datacom applications. Indeed, the unique properties of Ge have been leveraged to develop …

Midinfrared spectroscopy is a universal way to identify chemical and biological substances.
Indeed, when interacting with a light beam, most molecules are responsible for absorption at …

Mid-infrared (mid-IR) silicon photonics is expected to lead key advances in different areas
including spectroscopy, remote sensing, nonlinear optics or free-space communications …

In recent years, sensing and communication applications have fueled important
developments of group-IV photonics in the mid-infrared band. In the long-wave range, most …

In less than a decade, the mid-infrared (mid-IR) spectral range (2.5-12 μm) has become a
key application for innovative silicon photonic devices because of the growing potential in …

Mid-infrared (mid-IR) integrated photonics are expected to provide key advances for the
demonstration of chip-scale spectroscopic systems. It has been recently reported that Ge …

This Letter explores the use of Ge-rich Si_0. 2Ge_0. 8 waveguides on graded Si_1− xGe_x
substrate for the demonstration of ultra-wideband photonic integrated circuits in the mid …

Germanium-on-silicon (GOS) represents the leading platform for foundry-based long-wave
infrared photonic integrated circuits (LWIR PICs), due to its CMOS compatibility and absence …

Long-wave infrared photonics is an exciting research field meant to revolutionize our daily
life by means of key advances in several domains including communications, imaging …