Visible spectrum quantum light sources based on InxGa1–xN/GaN Quantum Dots

Tomic, S; Pal, J; Migliorato, MA; Young, R; Vukmirović, N

Abstract

We present a method for designing quantum
light sources, emitting in the visible band, using wurtzite
InxGa1−xN quantum dots (QDs) in a GaN matrix. This system
is significantly more versatile than previously proposed
arsenide- and phosphide-based QDs, having a tuning range
exceeding 1 eV. The quantum mechanical configuration
interaction method, capturing the fermionic nature of
electrons and associated quantum effects explicitly, is used to
find shapes and compositions of dots to maximize the
excitonic dipole matrix element and optimize the biexciton
binding energy. These results provide QD morphologies
tailored for either bright single-photon emission or entangledphoton-
pair emission at any given wavelength in the visible
spectrum.

Citation

Tomic, S., Pal, J., Migliorato, M., Young, R., & Vukmirović, N. (2015). Visible spectrum quantum light sources based on InxGa1–xN/GaN Quantum Dots. ACS photonics, 2(7), 958-963. https://doi.org/10.1021/acsphotonics.5b00159

• Journal Article Type: Article
• Online Publication Date: Jun 9, 2015
• Publication Date: Jun 9, 2015
• Deposit Date: Dec 8, 2015
• Publicly Available Date: Apr 5, 2016
• Journal: ACS Photonics
• Publisher: American Chemical Society
• Volume: 2
• Issue: 7
• Pages: 958-963
• DOI: https://doi.org/10.1021/acsphotonics.5b00159
• Publisher URL: http://dx.doi.org/10.1021/acsphotonics.5b00159
• Related Public URLs: http://pubs.acs.org/page/apchd5/about.html
• Additional Information: Funders : Royal Society, London;EU-COST (project MP1406);Engineering and Physical Sciences Research Council (EPSRC);European Community FP7