6533b823fe1ef96bd127eba5

RESEARCH PRODUCT

Continuum and discrete excitation spectrum of single quantum rings

Daniel GranadosBenito AlénBenito AlénJuan P. Martínez-pastorJorge M. Garcia

subject

PhysicsExcitation spectrumContinuum (measurement)Condensed Matter::OtherOptical transitionSpectrum (functional analysis)Physics::OpticsCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsNanostructuresCondensed Matter::Materials ScienceQuantum mechanicsNetwork of excellenceEuropean commissionSingle quantum ringsQuantumPhotoluminescenceExcitation

description

Photoluminescence and excitation of the photoluminescence spectroscopy has been performed in single InGaAs self-assembled quantum rings embedded in a field effect structure device. To determine their electronic structure, bias-dependent optical transitions have been analyzed both, for individual quantum rings, and for the averaged ensemble. Our results are compared with a theoretical model, and also with results reported by other authors studying similar nanostructures.

yearjournalcountryeditionlanguage
2005-10-27
10.1103/physrevb.72.155331http://hdl.handle.net/10261/19057