Title :
Terahertz intersubband electroluminescence from GaN/AlGaN quantum cascade laser structure on AlGaN template
Author :
Terashima, W. ; Hirayama, H.
Author_Institution :
Terahertz Quantum Device Lab., RIKEN, Sendai, Japan
Abstract :
We demonstrate terahertz (THz) electroluminescence (EL) from a GaN/AlGaN quantum cascade laser (QCL) structure fabricated on an AlGaN template. From investigations of a polarization - and a voltage-dependence of the EL from the THz-QCL, we proved conclusively intersubband nature of the EL peak.
Keywords :
III-V semiconductors; aluminium compounds; electroluminescence; gallium compounds; quantum cascade lasers; GaN-AlGaN; quantum cascade laser structure; terahertz intersubband electroluminescence; Aluminum gallium nitride; Frequency measurement; Gallium nitride; Periodic structures; Quantum cascade lasers; Voltage measurement; X-ray scattering;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105201
