Room temperature GeSn laser

A C2N team, in collaboration with CEA Grenoble (LETI and IRIG) and STMicroelectronics, presents the first room temperature laser with GeSn, a group IV semiconductor compatible with silicon fabrication. This major result is published in Optics Express. GeSn …

Metamaterial-Engineered Silicon Beam Splitter Fabricated with Deep UV Immersion Lithography

Subwavelength grating (SWG) metamaterials have garnered a great interest for their singular capability to shape the material properties and the propagation of light, allowing the realization of devices with unprecedented performance. However, practical SWG implementations are limited by fabrication …

Integrated electro-optical modulator in the mid-IR spectral range

Spectroscopy sensing in the mid-infrared (mid-IR) range (2−20 μm wavelength) is an unambiguous way to detect and quantify small traces of environmental and toxic vapors. However, current mid-IR devices are often based on a free-space configuration, thus becoming bulky …