A Quantum Dot Single Photon Source

  • Peter Michler
  • Alper Kiraz
  • Christoph Becher
  • Winston V. Schoenfeld
  • Pierre M. Petroff
  • Lidong Zhang
  • Evelyn Hu
  • Atac Imamoğlu
Part of the Advances in Solid State Physics Volume 41 book series (ASSP, volume 41)


We demonstrate heralded single photon emission from a self-assembled InAs quantum dot (QD). Pulsed optical excitation (82 MHz) together with Coulomb renormalization effects allows for the realization of regular single photon emission at the excitonic transiton (1X) with nearly 100 % efficiency. By temperature tuning, we are able to shift the 1X transition into resonance with a whispering gallery mode of a microdisk (Q ∼ 6500) and achieve turnstile operation of the coupled QD-cavity system. On resonance, the Purcell effect causes a reduction of the 1X transition lifetime leading to a reduced time jitter of the photon emission event and ensuring that photons are primarily emitted into a cavity mode.


Pump Power Single Photon Cavity Mode Excitation Power Whisper Gallery Mode 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Peter Michler
    • 1
    • 2
  • Alper Kiraz
    • 1
  • Christoph Becher
    • 1
    • 4
  • Winston V. Schoenfeld
    • 3
  • Pierre M. Petroff
    • 1
    • 4
  • Lidong Zhang
    • 1
  • Evelyn Hu
    • 1
  • Atac Imamoğlu
    • 1
  1. 1.Department of Electrical and Computer EngineeringUniversity of CaliforniaSanta BarbaraUSA
  2. 2.Institut für FestkörperphysikUniversität BremenBremenGermany
  3. 3.Materials DepartmentUniversity of CaliforniaSanta BarbaraUSA
  4. 4.Institut für ExperimentalphysikLeopold-Franzens-Universität InnsbruckInnsbruckAustria

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