A quantum dot based bright source of entangled photon pairs operating at 53 K

A. Dousse; J. Suffczyński; O. Krebs; A. Beveratos; A. Lemàtre; I. Sagnes; J. Bloch; P. Voisin; P. Senellart

doi:10.1063/1.3475487

A quantum dot based bright source of entangled photon pairs operating at 53 K

A. Dousse
, J. Suffczyński
, O. Krebs
, A. Beveratos
, A. Lemàtre
, I. Sagnes
, J. Bloch
, P. Voisin
, P. Senellart

École Polytechnique

Research output: Contribution to journal › Article › peer-review

Abstract

The exciton and biexciton lines of a single quantum dot are deterministically coupled to the optical modes of a photonic molecule. The resonance between the quantum dot emission lines and the molecule cavity modes is reached at 53 K. The device operates as a very bright source of entangled photon pairs, with an extraction efficiency of 40% for each photon of the pair. Our measurements show that the use of Purcell effect allows to quench the exciton spin relaxation during the radiative cascade, at 53 K and at high excitation power.

Original language	English
Article number	081104
Journal	Applied Physics Letters
Volume	97
Issue number	8
DOIs	https://doi.org/10.1063/1.3475487
Publication status	Published - 23 Aug 2010

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abstract = "The exciton and biexciton lines of a single quantum dot are deterministically coupled to the optical modes of a photonic molecule. The resonance between the quantum dot emission lines and the molecule cavity modes is reached at 53 K. The device operates as a very bright source of entangled photon pairs, with an extraction efficiency of 40\% for each photon of the pair. Our measurements show that the use of Purcell effect allows to quench the exciton spin relaxation during the radiative cascade, at 53 K and at high excitation power.",

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AU - Dousse, A.

AU - Suffczyński, J.

AU - Krebs, O.

AU - Beveratos, A.

AU - Lemàtre, A.

AU - Sagnes, I.

AU - Bloch, J.

AU - Voisin, P.

AU - Senellart, P.

PY - 2010/8/23

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N2 - The exciton and biexciton lines of a single quantum dot are deterministically coupled to the optical modes of a photonic molecule. The resonance between the quantum dot emission lines and the molecule cavity modes is reached at 53 K. The device operates as a very bright source of entangled photon pairs, with an extraction efficiency of 40% for each photon of the pair. Our measurements show that the use of Purcell effect allows to quench the exciton spin relaxation during the radiative cascade, at 53 K and at high excitation power.

AB - The exciton and biexciton lines of a single quantum dot are deterministically coupled to the optical modes of a photonic molecule. The resonance between the quantum dot emission lines and the molecule cavity modes is reached at 53 K. The device operates as a very bright source of entangled photon pairs, with an extraction efficiency of 40% for each photon of the pair. Our measurements show that the use of Purcell effect allows to quench the exciton spin relaxation during the radiative cascade, at 53 K and at high excitation power.

U2 - 10.1063/1.3475487

DO - 10.1063/1.3475487

M3 - Article

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SN - 0003-6951

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

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A quantum dot based bright source of entangled photon pairs operating at 53 K

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