Title :
Photon-Driven Transport in Quantum Cascade Lasers
Author :
Choi, Hyunyong ; Wu, Zong-Kwei ; Norris, Theodore B. ; Diehl, Laurent ; Capasso, Federico ; Giovannini, Marcella ; Faist, Jérôme
Author_Institution :
Univ. of Michigan, Ann Arbor
Abstract :
Ultrafast mid-infrared pump-probe experiments are used to study gain dynamics and transport processes in quantum cascade lasers below and above threshold. We observe for the first time how stimulated emission drives the current through the cascade heterostructure.
Keywords :
high-speed optical techniques; photon transport theory; quantum cascade lasers; gain dynamics; photon-driven transport; quantum cascade lasers; transport processes; ultrafast mid-infrared pump-probe experiments; Laser excitation; Laser transitions; Laser tuning; Optical coupling; Optical pumping; Optical superlattices; Pump lasers; Quantum cascade lasers; Stimulated emission; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4453051
