Title :
Evidence of periodic electric fields generated by Spatial separation of photogenerated electron-hole pairs in short-period InAs/GaSb type-II superlattices
Author :
Mu, Xiaodong ; Ding, Yujie J. ; Svensson, Stefan P. ; Little, John ; Swaminathan, V.
Author_Institution :
Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, PA 18015, USA
Abstract :
Under relatively high pump intensities, photoluminescence intensities across the miniband were greatly reduced, which was attributed to the existence of periodic electric fields caused by spatially-separated photogenerated electrons and holes in short-period type-II InAs/GaSb superlattices.
Keywords :
Buffer layers; Charge carrier processes; Conducting materials; Electrons; Photoluminescence; Pump lasers; Semiconductor superlattices; Sensor phenomena and characterization; Substrates; Temperature;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431205
