Terahertz Quantum Cascade Amplifiers and Oscillators for Heterodyne Receiver Applications

Principal Investigators

  • Prof. Dr. Jerome, Faist

This project covers the development of quantum cascade laser based amplifiers and sources with specific operation characteristics that meet the requirements of TPs D2 and D3. Two different types of QCLs are aimed to be developed: first, AlGaAs/GaAs QCLs grown on GaAs emitting between 2 and 5 THz, second QCLs based on InGaAs/InP grown on InP that emit at 17 and 28 μm. Particular emphasis will be put into the development of electromagnetic structures allowing efficient coupling to external resonators developed by D2 and their integration into full operational systems.

Selected Publications


In 2012
A. Bismuto, R. Terazzi, B. Hinkov, M. Beck, and J. Faist, “Fully automatized quantum cascade laser design by genetic optimization”, Appl. Phys. Lett. 2012, 101, 021103

K. Ohtani, M. Beck, G. Scalari, and J. Faist, “Terahertz Quantum Cascade Lasers Based on Quaternary AlInGaAs Barriers”, Appl. Phys. Lett., 2012, 103, 041103

In 2011
F. Castellano, A. Bismuto, M. I. Amanti, R. Terazzi, M. Beck, S. Blaser, A. Bächle, and J. Faist, "Loss mechanisms of quantum cascade lasers operating close to optical phonon frequencies", J. Appl. Phys., 2011, 109, 102407

In 2009
M. I. Amanti, M. Fischer, G. Scalari, M. Beck and J. Faist, “Low-divergence single-mode terahertz quantum cascade laser”, Nature Photon., 2009, 3, 586

In 2008
R. Terazzi, T. Gresch, A. Wittmann, and J. Faist, “Sequential resonant tunneling in quantum cascade lasers”, Phys. Rev. B, 2008, 78, 155328

M. A. Belkin, F. Capasso, F. Xie, A. Belyanin, M. Fischer, A. Wittmann, and J. Faist, "Room temperature terahertz quantum cascade laser source based on intracavity difference-frequency generation", Appl. Phys. Lett., 2008, 92, 201101

In 2007
C. Walther, M. Fischer, G. Scalari, R. Terazzi, N. Hoyler, J. Faist, "Quantum cascade lasers operating from 1.2. to 1.6 THz", Appl. Phys. Lett., 2007, 91, 131122

In 1994
J. Faist, F. Capasso, D. L. Sivco, C. Sitori, A.L. Hutchinson, A. Y. Cho, "Quantum Cascade Laser", Science, 1994, 264, 553