Blue-to-green single photons from InGaN/GaN dot-in-a-wire nanowire ordered arrays

E. Chernysheva; Z. Gacevic; N. Garcia-Lepetit; H. P. van der Meulen; M. Muller; F. Bertram; P. Veit; A. Torres-Pardo; J. M. Gonzalez Calbet; J. Christen; E. Calleja; J. M. Calleja; S. Lazic

doi:10.1209/0295-5075/111/24001

arXiv · 1706.03601

Blue-to-green single photons from InGaN/GaN dot-in-a-wire nanowire ordered arrays

E. Chernysheva·Z. Gacevic·N. Garcia-Lepetit·H. P. van der Meulen·M. Muller·F. Bertram·P. Veit·A. Torres-Pardo·J. M. Gonzalez Calbet·J. Christen·E. Calleja·J. M. Calleja·S. Lazic

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Abstract

Single-photon emitters (SPEs) are at the basis of many applications for quantum information management. Semiconductor-based SPEs are best suited for practical implementations because of high design flexibility, scalability and integration potential in practical devices. Single-photon emission from ordered arrays of InGaN nano-disks embedded in GaN nanowires is reported. Intense and narrow optical emission lines from quantum dot-like recombination centers are observed in the blue-green spectral range. Characterization by electron microscopy, cathodoluminescence and micro-photoluminescence indicate that single photons are emitted from regions of high In concentration in the nano-disks due to alloy composition fluctuations. Single-photon emission is determined by photon correlation measurements showing deep anti-bunching minima in the second-order correlation function. The present results are a promising step towards the realization of on-site/on-demand single-photon sources in the blue-green spectral range operating in the GHz frequency range at high temperatures.

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E. Chernysheva, Z. Gacevic, N. Garcia-Lepetit, H. P. van der Meulen, M. Muller, F. Bertram, P. Veit, A. Torres-Pardo, J. M. Gonzalez Calbet, J. Christen, E. Calleja, J. M. Calleja, S. Lazic. 2017-06-12. Blue-to-green single photons from InGaN/GaN dot-in-a-wire nanowire ordered arrays. https://doi.org/10.1209/0295-5075/111/24001

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