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Room temperature-dipolelike single photon source with a colloidal dot-in-rod

Source: Appl. Phys. Lett. 96, 033101 (2010); doi:10.1063/1.3291849

Published 19 January 2010

KEYWORDS and PACS
Keywords
PACS
  • 78.67.Hc
    Optical properties of quantum dots
  • 68.65.Hb
    Quantum dots patterned in quantum wells (structure and nonelectronic properties)
  • 82.70.Dd
    Colloids
  • 71.35.-y
    Excitons and related phenomena
  • YEAR: 2010
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Ferruccio Pisanello,1,2 Luigi Martiradonna,3 Godefroy Leménager,1 Piernicola Spinicelli,1 Angela Fiore,2 Liberato Manna,4 Jean-Pierre Hermier,5 Roberto Cingolani,2,3 Elisabeth Giacobino,1 Massimo De Vittorio,2,3 and Alberto Bramati1
1Université Pierre et Marie Curie, Laboratoire Kastler Brossel, CNRS UMR8552, Ecole Normale Supérieure, 4 place Jussieu, 75252 Paris Cedex 05, France
2National Nanotechnology Laboratory, CNR/INFM, Scuola superiore ISUFI, Università del Salento, 16 Via Arnesano, Lecce 73100, Italy
3Center for Bio-Molecular Nanotechnology, Istituto Italiano di Tecnologia (IIT), Via Barsanti 1, Arnesano, Lecce 73010, Italy
4Central Research Lab, Istituto Italiano di Tecnologia (IIT), 30 Via Morego, Genova 16163, Italy
5Groupe d'étude de la Matière Condensée, CNRS UMR8635, Université de Versailles, Saint-Quentin-en-Yvelines, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France
We propose colloidal CdSe/CdS dots in rods as nonclassical sources for quantum information technology. Such nanoemitters show specific properties such as strongly polarized emission of on-demand single photons at room temperature, dipolelike behavior and mono-exponential recombination rates, making us envision their suitability as sources of single photons with well defined quantum states in quantum cryptography based devices. ©2010 American Institute of Physics
History: Received 5 October 2009; accepted 1 December 2009; published 19 January 2010
Permalink: http://link.aip.org/link/?APPLAB/96/033101/1

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