QCLs were initially developed in the 1990s, and this was a significant advance in MIR light sources. 2 Standard semiconductor ...

Terahertz quantum cascade lasers (THz QCLs) are semiconductor-based devices that produce coherent radiation within the terahertz region of the electromagnetic spectrum. These lasers operate via ...

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 ...

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 ...

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 ...

Physicists at Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have created a compact laser that emits extremely bright, short pulses of light in a useful but ...

The first iteration of the MIRcat laser is a field-proven multi-quantum cascade laser system that gains enhanced heat management, higher spectral repeatability, high-speed tuning, and longer ...

Defense systems developer Leonardo DRS has been awarded another full-rate production contract to supply its industry-leading quantum cascade laser technology to enable common infrared countermeasure ...