Recent efforts have been heavily devoted to the development of next‐generation
optoelectronic devices based on 2D materials, due to their unique optical properties that are …

A Fourier transform spectrometer (FTS) is recognized as a highly precise analytical
instrument for analyzing the constituent elements of matter in the fields of physics, chemistry …

On-chip spectrometers using silicon photonics offer a compact, energy-efficient, and cost-
effective solution to biochemical spectroscopy and hyperspectral imaging in integrated and …

We experimentally demonstrate supercontinuum (SC) generation in a germanium-on-silicon
waveguide. This waveguide exhibits propagation loss between 1.2 dB/cm and 1.35 dB/cm in …

Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

The integration of Ge on Si for photonics applications has reached a high level of maturity:
Ge photodetectors are available on the Si platform in foundry processes, and Si/Ge …

Mid-infrared spectroscopy is essential for identifying molecular species, while related electro-
optic modulators are crucial for signal-to-noise enhancement via synchronous detection …

We present broadband on-chip resonators based on SiGe graded-index waveguides
operating in the long-wave infrared spectral range from 7.5 to 9.0 μm wavelength range. A …

Thermo-optic phase shifter (TOPS) based on doped silicon (Si) heaters is commonly used to
compensate for device structure imbalance of high-speed Mach-Zehnder modulator (MZM) …

On-chip devices for absorption spectroscopy and Raman spectroscopy have been
developing rapidly in the last few years, triggered by the growing availability of compact and …