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

  • Holmes M
  • Choi K
  • Kako S
 et al. 
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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.

Author-supplied keywords

  • III-nitride
  • Nanowire
  • quantum dot
  • room temperature
  • single photon source

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