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Optic of Semiconductor nanoStructures Group LPN) > Quantum dots in microcavities
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Puce Presentation

Single QDs are often considered as artificial atoms because carriers trapped within a single QD present discrete energy states. Indeed, single QDs have been shown to emit single photons, indistinguishable photons, or even entangled photon pairs… Moreover, a single spin trapped inside a single QD could be used as a quantum bit. When inserted in an optical microcavity, the spontaneous emission of a single QD can be accelerated (weak coupling regime - Purcell effect) or made reversible in the so called strong coupling regime. Both weak and strong coupling are of great interest in the field of solid state quantum computing: the weak coupling regime can be used to efficiently extract the single photons emitted by the QD and the strong coupling regime may be used to entangle several distant quantum dot based quantum bits. Our research activity is devoted to the demonstration of the control of the spontaneous emission in QD based systems, and to applications in the field of quantum computing.

AutoOrg High quality factor microcavities – Single quantum dot spectroscopy
AutoOrg A first demonstration of strong coupling regime with a single quantum dot in a microdisk cavity
AutoOrg A deterministic technology to couple a QD to a cavity mode
AutoOrg First systematic investigations of solid state light matter coupling
AutoOrg Ultrabrigth source of entangled photon pairs
AutoOrg Controlling the spontaneous emission of CdSe/ZnS nanocrystals
AutoOrg Resonant excitation of strongly-coupled cavity-quantum dot systems
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Puce Members

Contacts

 Senellart Pascale  (+33) 1 69 63 61 96  
 Lanco Loic  (+33) 1 69 63 60 45  
 Lanzillotti Kimura Daniel  (+33) 1 69 63 62 46  

And also...

 Bloch Jacqueline  (+33) 1 69 63 61 90  
 Lemaître Aristide  (+33) 1 69 63 60 72  
 Voisin Paul  (+33) 1 69 63 61 93  
 Coppola Guillaume  (+33) 1 69 63 61 96  

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Puce Patents

  • Sources et capteurs de lumiere comprenant au moins une microcavite a mode Tamm plasmonique localise (International Application N°: PCT/FR1003/881), P. Senellart, A. Lemaître, S. Michaelis de Vasconcellos, O. Gazzano, J. Bellessa, O. Daniel, FR 1003/881 , (2010-09-30)
  • Composant émetteur de paires de photons intriqués en polarisation et méthode de fabrication de ce composant, P. Senellart, A. Dousse, FR 1000195, (2010-01-19)
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Puce Publications

Publication in journals
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Puce Contracts and projects

    Puce International Projects

      ILNACS : Nanostructures of Compound Semiconductors (Growth, properties, devices)

      Reference contract : LIA
      Coordinator, Partner(s) : F. Glas (LPN ),
      C2N leader(s): Frank Glas
      Main goals : Organize and develop scientific collaborations between the CNRS laboratories and the laboratories and institutes of the Russian Academy of Sciences based in Saint Petersburg in the domains of growth and study of the physical properties of nanostructures of compound semiconductors, and of compounds based on the latter.
      (2010-2017)

      QD-CQED : A quantum dot in a cavity: A solid state platform for quantum operations

      Reference contract : ERC starting grant 277885
      Coordinator, Partner(s) : P. Senellart (LPN ),
      Main goals : The QD-CQED project aims at implementing elementary quantum operations using semiconductor quantum dots inserted in optical microcavities. photon or entangled photon pairs will be developed and used to demonstrate quantum teleportation and entanglement swapping. With an additional carrier inside the quantum dot, our objective is also to demonstrate spin-photon entanglement and head toward the remote entanglement of two spins. (2011-2016)

      SSQN : Solid State Quantum Network

      Reference contract : CHISTERA 2011
      Coordinator, Partner(s) : J. Rarity (Universite de Bristol),
      C2N leader(s): Pascale Senellart
      Main goals : In this consortium we propose to work towards a deterministic quantum network based on semiconductor quantum dot-micropillar cavity systems. In particular, we will develop a QD-spin micropillar cavity system, which acts as an all-in-one spin-photon-interface and a Bell-state analyser. (2011-2014)

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    Puce ANR non thématiques

      QDOM : Quantum Dot Optomechanics

      Reference contract : ANR07-240 (2012-2016)
      C2N leader(s): Loic Lanco, Pascale Senellart
      Main goals : Main objectives: QDOM project bridges the gap, at the nanoscale, between two yet distinct research fields: optomechanics of deformable cavities (« Cavity Optomechanics ») and cavity Quantum ElectroDynamics (« Cavity QED »). These two fields utilize an electromagnetic wave trapped in a cavity, to boost its interaction with a mechanical oscillator or with an atom. QDOM project aims at exploring a hybrid interface between these two domains by using a semiconductor quantum dot embedded in an optomechanical cavity, and by taking advantage of the tripartite interaction between confined excitons, photons and phonons. (2012-2016)

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    Puce ANR jeunes chercheurs

      MIND : Mesure non destructive d’un spin unique.

      Reference contract : ANRJCJC2009
      C2N leader(s): Loic Lanco
      Main goals : Mesure non destructive d’un spin unique. (2009-2012)

      MICADOS : Boîtes quantiques semiconductrices de grande force d’oscillateur et microcavités optiques ultimes pour le régime de couplage fort exciton-photon

      Reference contract : ANR Programme Jeunes chercheuses et Jeunes Chercheurs
      Coordinator, Partner(s) : S. Sauvage (IEF )
      C2N leader(s): Isabelle Robert-Philip, Pascale Senellart
      Main goals : L’étude se developpera selon trois axes de travail: 1. Etude de boîtes quantiques de grande force d’oscillateur 2. Développement de cavités optiques ultimes 3. Etude optique du régime de couplage fort (2005-2008)

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    Puce ANR PNANO

      CAFE : Source de photons uniques assistée par la décohérence d\'une boîte quantique

      Reference contract : ANR P3N 2009
      C2N leader(s): Pascale Senellart
      Main goals : L’objectif de ce projet est la fabrication déterministe, compatible avec une production grande échelle, de sources de photons uniques efficaces à base de boites quantiques semiconductrices ou de nanocristaux de semiconducteurs (2009-2012)

      DELIGHT : Deterministic light matter coupling

      Reference contract : ANR P3N 2009
      C2N leader(s): Pascale Senellart
      Main goals : L’objectif de ce projet est la fabrication déterministe, compatible avec une production grande échelle, de sources de photons uniques efficaces à base de boites quantiques semiconductrices ou de nanocristaux de semiconducteurs (2009-2012)

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    Puce Other National Projects

      NAOMI : Integrated Nano-optomechanics

      Reference contract : Cnano Ile de France
      C2N leader(s): Rémy Braive, Isabelle Robert-Philip, Pascale Senellart
      Main goals : The objective of the project is to develop nano-optomechanical systems, by gathering the complementary expertise of the Laboratory for Photonics and Nanostructures, the Laboratoire Kastler Brossel and the Matériaux et Phénomènes Quantiques Laboratory. (2008-2011)

      PICORRE : Corrélations de photons à l’échelle picroseconde.

      Reference contract : RTRA
      C2N leader(s): Pascale Senellart
      Main goals : Mise en place d’un banc de corrélations de photons de résolution picoseconde. (2009-2011)

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