Near-infrared wavelength intersubband transitions in GaN/AlN short period superlattices
- Department of Electrical Engineering, University of Arkansas, 3217 Bell Engineering Center, Fayetteville, Arkansas 72701 (United States)
Intersubband transitions in GaN/AlN short period superlattices prepared by molecular beam epitaxy were investigated using the optical absorption technique. The peak position wavelengths of these transitions are found to span the spectral range of 1.35-2.90 {mu}m for samples cut into 45 deg. waveguides with GaN quantum well thicknesses ranging between 1.70 and 2.41 nm. The Fermi energy levels are estimated from the carrier concentrations, which were measured using an electrochemical capacitance-voltage profiler. The well widths were inferred from comparing the measured peak position energy of the intersubband transitions and the bound state energy levels calculated using the transfer matrix method.
- OSTI ID:
- 20860976
- Journal Information:
- Applied Physics Letters, Vol. 89, Issue 15; Other Information: DOI: 10.1063/1.2358929; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Near-infrared intersubband absorption in nonpolar cubic GaN/AlN superlattices
Strain relaxation in short-period polar GaN/AlN superlattices
Dramatic enhancement of near-infrared intersubband absorption in c-plane AlInN/GaN superlattices
Journal Article
·
Mon Jul 23 00:00:00 EDT 2007
· Applied Physics Letters
·
OSTI ID:20860976
+3 more
Strain relaxation in short-period polar GaN/AlN superlattices
Journal Article
·
Wed Jul 01 00:00:00 EDT 2009
· Journal of Applied Physics
·
OSTI ID:20860976
+2 more
Dramatic enhancement of near-infrared intersubband absorption in c-plane AlInN/GaN superlattices
Journal Article
·
Mon Mar 21 00:00:00 EDT 2016
· Applied Physics Letters
·
OSTI ID:20860976
+6 more
Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ALUMINIUM NITRIDES
BOUND STATE
CAPACITANCE
CARRIER DENSITY
CRYSTAL GROWTH
ELECTRIC POTENTIAL
FERMI LEVEL
GALLIUM NITRIDES
INFRARED SPECTRA
MOLECULAR BEAM EPITAXY
QUANTUM WELLS
SEMICONDUCTOR MATERIALS
SUPERLATTICES
THICKNESS
TRANSFER FUNCTIONS
TRANSFER MATRIX METHOD
WAVEGUIDES
WAVELENGTHS
GENERAL PHYSICS
ABSORPTION
ALUMINIUM NITRIDES
BOUND STATE
CAPACITANCE
CARRIER DENSITY
CRYSTAL GROWTH
ELECTRIC POTENTIAL
FERMI LEVEL
GALLIUM NITRIDES
INFRARED SPECTRA
MOLECULAR BEAM EPITAXY
QUANTUM WELLS
SEMICONDUCTOR MATERIALS
SUPERLATTICES
THICKNESS
TRANSFER FUNCTIONS
TRANSFER MATRIX METHOD
WAVEGUIDES
WAVELENGTHS