Explorations of the Quantum Cascade Laser — with Jerome Faist

Jerome Faist, co-inventor of the quantum cascade laser (QCL),
reflects on nearly 30 years’ worth of innovations in
semiconductor lasing and the history of the QCL. Faist discusses
applications in the terahertz and mid-infrared bands, frequency
comb spectroscopy, and ultrashort-pulse lasing. Plus, how did the
QCL get its name? All Things Photonics is produced by Photonics
Media and airs biweekly, on Tuesdays. Contact us at
allthings@photonics.com.