Two-color single-photon emission from InAs quantum dots: Toward logic information management using quantum light

David Rivas, Guillermo Muñoz-Matutano, Josep Canet-Ferrer, Raúl García-Calzada*, Giovanna Trevisi, Luca Seravalli, Paola Frigeri, Juan P. Martínez-Pastor

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In this work, we propose the use of the Hanbury-Brown and Twiss interferometric technique and a switchable two-color excitation method for evaluating the exciton and noncorrelated electron-hole dynamics associated with single photon emission from indium arsenide (InAs) self-assembled quantum dots (QDs). Using a microstate master equation model we demonstrate that our single QDs are described by nonlinear exciton dynamics. The simultaneous detection of two-color, single photon emission from InAs QDs using these nonlinear dynamics was used to design a NOT AND logic transference function. This computational functionality combines the advantages of working with light/photons as input/output device parameters (all-optical system) and that of a nanodevice (QD size of ∼20 nm) while also providing high optical sensitivity (ultralow optical power operational requirements). These system features represent an important and interesting step toward the development of new prototypes for the incoming quantum information technologies.

Original languageEnglish
Pages (from-to)456-463
Number of pages8
JournalNano Letters
Volume14
Issue number2
DOIs
Publication statusPublished - 12 Feb 2014
Externally publishedYes

Keywords

  • exciton recombination dynamics
  • logic information
  • single photon emission
  • Single quantum dot

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