Control of emission wavelength for InGaAs/GaAs quantum wells and laser structures on their basis by means of proton irradiation
- Lobachevsky Nizhni Novgorod State University, Physicotechnical Research Institute (Russian Federation)
Features of controlling the wavelength of emission from laser heterostructures with strained InGaAs/GaAs quantum wells by irradiation with medium-energy (with the energy as high as 150 keV) protons are studied. It is established that irradiation with H{sup +} ions and subsequent thermal annealing at a temperature of 700 deg. C make it possible to decrease the wavelength of emission from quantum wells. As the dose of ions is increased from 10{sup 13} to 10{sup 16} cm{sup -2}, the magnitude of change in the wavelength increases to 20 nm. Starting with a dose of 10{sup 15} cm{sup -2}, a significant decrease in the intensity of emission is observed. The optimum dose of H{sup +} ions (6 x 10{sup 14} cm{sup -2}) and annealing temperature (700 deg. C) for modifying the InGaAs/GaAs/InGaP laser structures are determined; it is shown that, in this case, one can obtain a shift of {approx}(8-10) nm for the wavelength of laser radiation with low losses in intensity with the quality of the surface of laser structures retained. The observed 'blue' shift is caused by implantation-stimulated processes of intermixing of the In and Ga atoms at the InGaAs/GaAs interface.
- OSTI ID:
- 21562182
- Journal Information:
- Semiconductors, Vol. 44, Issue 11; Other Information: DOI: 10.1134/S1063782610110138; Copyright (c) 2010 Pleiades Publishing, Ltd.; ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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ANNEALING
ATOMS
CONTROL
DOSES
EMISSION
GALLIUM ARSENIDES
HYDROGEN IONS 1 PLUS
INDIUM ARSENIDES
INTERFACES
IRRADIATION
LASER RADIATION
LASERS
PROTONS
QUANTUM WELLS
SURFACES
WAVELENGTHS
ARSENIC COMPOUNDS
ARSENIDES
BARYONS
CATIONS
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
GALLIUM COMPOUNDS
HADRONS
HEAT TREATMENTS
HYDROGEN IONS
INDIUM COMPOUNDS
IONS
NANOSTRUCTURES
NUCLEONS
PNICTIDES
RADIATIONS