• DOI:10.1038/ncomms2691
• Corpus ID: 7649038

Electrically driven polarized single-photon emission from an InGaN quantum dot in a GaN nanowire.

@article{Deshpande2013ElectricallyDP,
  title={Electrically driven polarized single-photon emission from an InGaN quantum dot in a GaN nanowire.},
  author={Saniya Deshpande and Junseok Heo and Ayan Das and Pallab K. Bhattacharya},
  journal={Nature communications},
  year={2013},
  volume={4},
  pages={
          1675
        }
}

• S. Deshpande, J. Heo, +1 author P. Bhattacharya
• Published 9 April 2013
• Physics
• Nature communications

In a classical light source, such as a laser, the photon number follows a Poissonian distribution. For quantum information processing and metrology applications, a non-classical emitter of single photons is required. A single quantum dot is an ideal source of single photons and such single-photon sources in the visible spectral range have been demonstrated with III-nitride and II-VI-based single quantum dots. It has been suggested that short-wavelength blue single-photon emitters would be useful for free-space quantum cryptography, with the availability of high-speed single-photon detectors in this spectral region. Here we demonstrate blue single-photon emission with electrical injection from an In0.25Ga0.75N quantum dot in a single nanowire. The emitted single photons are linearly polarized along the c axis of the nanowire with a degree of linear polarization of ~70%.