Title :
Electron localization in quantum cascade heterostructures due to interface roughness
Author :
Harter, Marlene ; Dikmelik, Yamac ; Hoffman, Andy
Author_Institution :
Dept. of Electr. Eng., Univ. of Notre Dame, Notre Dame, IN, USA
Abstract :
The localization of electron wavefunctions due to interface roughness in a quantum cascade heterostructures is investigated by observing the electroluminescence spectra. Localization is more prominent in heterostructures with designed extended states.
Keywords :
electroluminescence; interface roughness; localised states; quantum cascade lasers; semiconductor heterojunctions; wave functions; electroluminescence spectra; electron localization; electron wavefunction; extended states; interface roughness; quantum cascade heterostructures; Electric potential; Electroluminescence; Electron optics; Measurement by laser beam; Nonlinear optics; Quantum cascade lasers; Superlattices;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
