Room-temperature triggered single photon emission from a III-nitride site-controlled nanowire quantum dot.

Nano Lett

Institute for Nano Quantum Information Electronics, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.

Published: February 2014

AI Article Synopsis

  • Demonstrated room temperature single photon emission from a site-controlled III-nitride quantum dot in a nanowire.
  • Exhibited low temperature sensitivity with a g((2))[0] value of 0.13 at 300 K, indicating strong photon anti-bunching.
  • These high-quality quantum dots have potential applications in room-temperature quantum information processing and on-chip quantum communication.

Article Abstract

We demonstrate triggered single photon emission at room temperature from a site-controlled III-nitride quantum dot embedded in a nanowire. Moreover, we reveal a remarkable temperature insensitivity of the single photon statistics, and a g((2))[0] value at 300 K of just 0.13. The combination of using high-quality, small, site-controlled quantum dots with a wide-bandgap material system is crucial for providing both sufficient exciton confinement and an emission spectrum with minimal contamination in order to enable room temperature operation. Arrays of such single photon emitters will be useful for room-temperature quantum information processing applications such as on-chip quantum communication.

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Source
http://dx.doi.org/10.1021/nl404400dDOI Listing

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