Title :
Group-IV quantum cascase laser operating in the L-valleys
Author :
Sun, G. ; Khurgin, J.B. ; Menendez, J. ; Soref, R.A.
Author_Institution :
Dept. of Phys., Univ. of Massachusetts Boston, Boston, MA
Abstract :
We design a lattice-matched Ge/Ge0.76Si0.19Sn0.05 quantum cascade laser emitting at 49 mum. This particular alloy composition gives a ldquocleanrdquo conduction band offset of 150 meV at L-valleys with all other energy valleys sitting higher in energy.
Keywords :
crystal structure; germanium compounds; quantum cascade lasers; Ge-GeSiSn; L-valleys; alloy composition; clean conduction band offset; group-IV quantum cascade laser; lattice matching; wavelength 49 mum; Germanium alloys; Germanium silicon alloys; Laser transitions; Optical design; Photonic band gap; Quantum cascade lasers; Quantum computing; Semiconductor lasers; Semiconductor materials; Silicon germanium; (140.5965) Semiconductor lasers, quantum cascade; (160.6000) Semiconductor materials;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
