A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2024.240077 , discusses agile cavity ringdown spectroscopy enabled by moderate optical feedback to a quantum cascade laser. Optical ...

A new, miniature laser source developed by applied physicists in the Harvard John A. Paulson School of Engineering and ...

CEA-Leti has this week presented some of its latest photonics-related achievements at SPIE Photonics West. The France-based research center is highlighting its researchers’ progress in the integration ...

Resonantly tunable quantum cascade lasers (QCLs) are high-performance laser light sources for a wide range of spectroscopy applications in the mid-infrared (MIR) range. Their high brilliance enables ...

Terahertz quantum cascade lasers (QCLs) represent a transformative development in the field of terahertz photonics, providing coherent radiation within a traditionally challenging spectral region ...

Lasers and quantum electronics represent a transformative amalgam of quantum mechanics and electromagnetic technology that underpins much of modern scientific and industrial innovation. Central to ...

The quest is on to make terahertz sources that are small, portable and capable of operating at room temperature. Such a breakthrough could lead to advances in everything from cancer screening to ...