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Lasers & Sources

Jerome Faist: Frequency combs enable QCL-based spectrometers

Linking optical frequencies to radio frequencies, a new type of comb structure emerged in the mid-infrared.

8 April 2015, SPIE Newsroom. DOI: 10.1117/2.3201504.03

Jérôme Faist received the PhD in Physics in 1989 from the Swiss Institute of Technology in Lausanne. He then worked successively at IBM Rueschlikon (1989-91) and Bell Laboratories (1991-97). He became full professor in the physics institute of the University of Neuchatel (1997) and then in the ETH Zurich (2007).

His key contribution to the development of the quantum cascade laser (QCL) was recognized by a number of awards that include the National Swiss Latsis Prize 2002.

In 1994 at Bell Labs, Federico Capasso and Faist worked with a team of physicists to develop the QCL, a fundamentally new light source whose emission wavelength can be designed to cover the entire spectrum from mid to far infrared by tailoring the active region layer thickness.

Faist is an author or coauthor of more than 80 papers presented at SPIE events, and serves of the program committees for the SPIE conferences "Terahertz Emitters, Receivers, and Applications" and "Quantum Sensing and Nanophotonic Devices," held annually at Optics + Photonics and Photonics West, respectively.

He is the author of Quantum Cascade Lasers (2013, Oxford University Press).