Title :
Physical Model and Scattering Dynamics Engineering for Intersubband Lasers and Photodetectors
Author :
Harrison, P. ; Jovanovic, V.D. ; Eric, M. ; Vukmirovic, N. ; Savic, I. ; Mircetic, A. ; Radovanovic, J. ; McTavish, J. ; Evans, C. ; Ikonic, Z. ; Kelsall, R.W. ; Milanovic, V. ; Indjin, D.
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ.
Abstract :
A fully quantum-mechanical model for electron transport in quantum devices, based on a self-consistent solution of the coupled rate equations, was applied to design of novel intersubband optically pumped or quantum cascade lasers and quantum-well infrared photodetectors. The important macroscopic parameters like I-V curves, laser gain, threshold current density, responsivity and capture probability can be estimated directly from this first-principles calculation. The presentation will review the method and describe its application to infrared and terahertz devices based on various semiconductor heterostructure systems
Keywords :
infrared detectors; light scattering; optical pumping; photodetectors; probability; quantum cascade lasers; quantum theory; I-V curves; capture probability; coupled rate equations; electron transport; first-principles calculation; infrared devices; infrared photodetectors; intersubband lasers; laser gain; macroscopic parameters; optical pumping; photodetectors; physical model; quantum cascade lasers; quantum devices; quantum-mechanical model; quantum-well photodetectors; responsivity; scattering dynamics engineering; semiconductor heterostructure systems; terahertz devices; threshold current density; Electrons; Equations; Laser modes; Laser theory; Optical coupling; Optical scattering; Particle scattering; Photodetectors; Pump lasers; Quantum cascade lasers;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices, 2004 Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-8820-8
DOI :
10.1109/COMMAD.2004.1577563
