High-energy (Visible-red) stimulated emission in GaAs
Journal Article
·
· J. Appl. Phys.; (United States)
The high-energy (visible-red) photpumped laser operation (6345 A at 77 K, 6785 A at 300 K) of Al/sub x/Ga/sub 1-x/As-AlAs-GaAs quantum-well heterostructures (QWH) grown by metalorganic chemical vapor deposition (MO-CVD) is described. The QWH active regions are alloy-free and consist of GaAs quantum wells and AlAs barrier layers. The effect of the AlAs barrier-layer thickness on the energy banding of the confined-carrier states and transitions is demonstrated. The laser operation of the coupled GaAs quantum wells is observed as high as 400--445 meV above the bulk-GaAs band edge, which agrees with the calculated locations (L/sub z/approx.30 A) of the lowest (n=1) electron, heavy-hole, and light-hole confined-particle states or energy bands.
- Research Organization:
- Department of Electrical Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
- OSTI ID:
- 6827135
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:2; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CHARGE CARRIERS
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
DATA
DEPOSITION
DIMENSIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EMISSION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
FERMIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HOLES
INFORMATION
LASERS
LEPTONS
LOW TEMPERATURE
MATERIALS
MEDIUM TEMPERATURE
MILLI EV RANGE
OPTICAL PUMPING
ORGANIC COMPOUNDS
PNICTIDES
PUMPING
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SEMICONDUCTOR MATERIALS
STIMULATED EMISSION
SURFACE COATING
THICKNESS
VISIBLE RADIATION
WAVELENGTHS
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CHARGE CARRIERS
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
DATA
DEPOSITION
DIMENSIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EMISSION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
FERMIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HOLES
INFORMATION
LASERS
LEPTONS
LOW TEMPERATURE
MATERIALS
MEDIUM TEMPERATURE
MILLI EV RANGE
OPTICAL PUMPING
ORGANIC COMPOUNDS
PNICTIDES
PUMPING
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SEMICONDUCTOR MATERIALS
STIMULATED EMISSION
SURFACE COATING
THICKNESS
VISIBLE RADIATION
WAVELENGTHS