Spectral tuning of site-selected single InAs/InP quantum dots via intermixing

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DOIResolve DOI: http://doi.org/10.1117/12.875634
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TypeArticle
Proceedings titleSPIE - International Society for Optical Engineering. Proceedings
ConferenceQuantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VIII, 25 January 2011 through 26 January 2011, San Francisco, CA
ISSN0277-786X
ISBN9780819484840
Volume7947
Article number794704
SubjectAnisotropic exchange splitting; biexciton binding energy; Blueshifts; Emission spectrums; Entangled photon pairs; InAs/InP; intermixing; Intermixing process; Nano-engineering; P-shell; Quantum Dot; Sign inversion; Single quantum dot; site-selected single quantum dots; Spectral tuning; Anisotropy; Emission spectroscopy; Excitons; Mixing; Nanostructures; Nuclear energy; Photons; Potential energy; Rapid thermal annealing; Rapid thermal processing; Semiconducting gallium compounds; Semiconductor quantum dots; Binding energy
AbstractIn this paper, we present experimental results from site-selected single quantum dots that have undergone a number of intermixing process steps via rapid thermal annealing. We show that the intermixing process blueshifts the dot's emission spectrum without affecting the linewidth as well as decreasing its biexciton binding energy and s-p shell spacing. The anisotropic exchange splitting is shown to have undergone a sign inversion implying that the splitting had gone through zero. Intermixing provides another nanoengineering tool for the design of scalable solid-state photon and entangled photon pair sources. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences (IMS-ISM)
Peer reviewedYes
NPARC number21271324
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Record identifiercca38bde-60f7-49a3-944d-723dfe0f354a
Record created2014-03-24
Record modified2017-04-24
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