Search results for "Single QD spectroscopy"

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Optical switching of quantum states inside self-assembled quantum dots

2008

Abstract Photoluminescence and excitation of photoluminescence spectroscopy have been performed for two kinds of single InAs self-assembled quantum dots grown on GaAs. The presence of unintentional impurities (donors and acceptors) offers the possibility to switch from negative to positively charged excitons by selectively exciting impurity related optical transitions.

Single QD spectroscopyPhotoluminescenceMaterials scienceCondensed matter physicsCondensed Matter::Otherbusiness.industryExcitonQuantum DotPhysics::OpticsCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsOptical switchCondensed Matter::Materials ScienceImpurityQuantum stateQuantum dotTrion recombinationOptoelectronicsGeneral Materials ScienceElectrical and Electronic EngineeringSpectroscopybusinessExcitation

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