Title :
Importance of growth direction in mid-infrared Quantum Cascade lasers
Author :
Bouzi, Pierre M. ; YenTing Chiu ; Deutsch, C. ; Tokranov, Vadim ; Oktyabrsky, Serge ; Gmachl, C.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
We report on the effect of growth direction in Quantum Cascade lasers by using symmetric structures. Dopant migration causes strong wavefunction overlap with dopants for positively biased devices, resulting in ~40% lower performance than those biased negatively.
Keywords :
infrared spectra; quantum cascade lasers; semiconductor growth; dopant migration; midinfrared quantum cascade lasers; positively biased devices; semiconductor growth; symmetric structures; wavefunction; Educational institutions; Electroluminescence; Optical design; Optical scattering; Performance evaluation; Quantum cascade lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
