Title :
Nonparabolic Valence Subband in In0.53Ga0.47As/In0.52Al0.48As Multi-Quantum Wells Using Transmission Spectroscopy
Author :
Tanaka, K. ; Kotera, N.
Author_Institution :
Hiroshima City Univ., Hiroshima
Abstract :
Transimisson spectroscopy in lattice matched In0.53Ga0.47As/In0.52Al0.48As multi-quantum wells (MQWs) structures were measured at some low temperatures. Steplike structures accentuated by the exciton peaks of interband transitions were observed in on transmission spectra. Energy of the three light hole transition was lower than one expected with calculation. The lower energy of the three light hole transition might suggest nonparabolicity of the light hole.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; infrared spectra; semiconductor quantum wells; valence bands; In0.53Ga0.47As-In0.52Al0.48As; exciton peaks; interband transitions; lattice matched MQW; multi-quantum wells; nonparabolic valence subband; steplike structures; three light hole transition; transmission spectroscopy; Excitons; Indium phosphide; Infrared detectors; Lattices; Optical amplifiers; Photonic band gap; Quantum well devices; Spectroscopy; Temperature; Voltage;
Conference_Titel :
Indium Phosphide & Related Materials, 2007. IPRM '07. IEEE 19th International Conference on
Conference_Location :
Matsue
Print_ISBN :
1-4244-0875-X
Electronic_ISBN :
1092-8669
DOI :
10.1109/ICIPRM.2007.381130