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Resonance raman spectroscopy of Ga1-xAlxAs mediated via compositional variation
- Publication Year :
- 2003
-
Abstract
- A specially prepared Ga1−xAlxAs sample with a laterally graded alloy composition has allowed a novel investigation of resonance Raman scattering from the optical phonons. Instead of varying the exciting light energy, the resonance is probed by changing the alloy composition at fixed incident energy. Both incoming and outgoing resonances are observed at the direct gap of the alloy, free of the usual overwhelming photoluminescence background.
- Subjects :
- Photoluminescence
Chemistry
Band gap
Resonance Raman spectroscopy
Resonance
General Chemistry
Inelastic scattering
Condensed Matter Physics
Molecular physics
Light scattering
Condensed Matter::Materials Science
symbols.namesake
Nuclear magnetic resonance
Materials Chemistry
symbols
Raman spectroscopy
Raman scattering
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....37a04ed1272151a244b0714697306285