Title :
Observation of Photon-driven Electronic Transport in Quantum Cascade Lasers
Author :
Choi, Hyunyong ; Diehl, Laurent ; Giovannini, Marcella ; Faist, Jérome ; Capasso, Federico ; Norris, Theodore B.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI
Abstract :
We report a series of femtosecond pump-probe measurements on quantum cascade lasers operating below and above threshold; the gain recovery dynamics reveal how quantum stimulated emission drives the current through the cascade heterostructure, which we refer to as photon-driven transport.
Keywords :
high-speed optical techniques; optical pumping; quantum cascade lasers; cascade heterostructure; femtosecond pump-probe measurements; gain recovery dynamics; photon-driven electronic transport; quantum cascade lasers; quantum stimulated emission; Electrons; Laser excitation; Optical pumping; Photonics; Quantum cascade lasers; Quantum computing; Stimulated emission; Superlattices; Tunneling; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391218
