Virtual Journal of Laser

G. Matmon, D. J. Paul, L. Lever, M. Califano, Z. Ikonic et al.
Quantum cascade lasers (QCLs) are compact sources that have demonstrated high output powers at terahertz (THz) frequencies. To date, all THz QCLs have been realized in III-V materials. Results are presented from SiGe quantum cascade superlattice designs emitting at around 3 THz which have been grown ... [J. Appl. Phys. 107, 053109 (2010)] published Mon Mar 8, 2010.