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  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper EA7_4

Towards parallel control of multiple single-photon emitters

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Abstract

Quantum sources of light are essential resources for many research fields in quantum physics, especially quantum information processing, quantum communication and quantum cryptography. It is now widely accepted that building scalable quantum resources is a major milestone on the road towards practical applications. In this communication, we present a method that allows us to control a large number (currently up to twenty) solid-state emitters in parallel. We apply our method to core/shell quantum dots such as CdSe/CdS, which are known to be good single-photon emitters at room-temperature [1]. However the principle applies to any emitter that can be triggered by optical excitation. The main features of our scheme are: (i) the number of quantum dots that are controlled in parallel is arbitrary (it is only limited by optical field of view and the optical resolution of our device), (ii) this number can be changed at any time without changing the excitation conditions of the emitters, (iii) the excitation intensity of each dot can be varied from zero to a maximum value independently of the others, (iv) the emitters are not required to be arranged in a regular lattice (as in [2]).

© 2011 IEEE

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