Visible Spectrum Quantum Light Sources Based on InxGa1–xN/GaN Quantum Dots | Zendy

Stanko Tomić | Zendy; Joydeep Pal | Zendy; M. A. Migliorato | Zendy; Robert J. Young | Zendy; Nenad Vukmirović | Zendy

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Visible Spectrum Quantum Light Sources Based on In_xGa_1–xN/GaN Quantum Dots

Author(s) -

Stanko Tomić,

Joydeep Pal,

M. A. Migliorato,

Robert J. Young,

Nenad Vukmirović

Publication year - 2015

Publication title -

acs photonics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.735

H-Index - 89

ISSN - 2330-4022

DOI - 10.1021/acsphotonics.5b00159

Subject(s) - quantum dot , wurtzite crystal structure , physics , visible spectrum , quantum point contact , photon , biexciton , optoelectronics , quantum , gallium arsenide , light emitting diode , materials science , electron , molecular physics , quantum well , optics , quantum mechanics , diffraction , laser

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 entangled-photon-pair emission at any given wavelength in the visible spectrum.

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