Single G centers in silicon fabricated by co-implantation with carbon and proton

• URL: http://arxiv.org/abs/2204.13521v1
• Date: Thu, 28 Apr 2022 14:13:09 GMT
• Title: Single G centers in silicon fabricated by co-implantation with carbon and proton
• Authors: Yoann Baron, Alrik Durand, Tobias Herzig, Mario Khoury, S\'ebastien Pezzagna, Jan Meijer, Isabelle Robert-Philip, Marco Abbarchi, Jean-Michel Hartmann, Shay Reboh, Jean-Michel G\'erard, Vincent Jacques, Guillaume Cassabois and Ana\"is Dr\'eau
• Abstract summary: We report the fabrication of G centers in silicon with an areal density compatible with single photon emission at optical telecommunication wavelengths. Our sample is made from a silicon-on-insulator wafer which is locally implanted with carbon ions and protons at various fluences.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We report the fabrication of G centers in silicon with an areal density compatible with single photon emission at optical telecommunication wavelengths. Our sample is made from a silicon-on-insulator wafer which is locally implanted with carbon ions and protons at various fluences. Decreasing the implantation fluences enables to gradually switch from large ensembles to isolated single defects, reaching areal densities of G centers down to $\sim$0.2 $\mu$m$^{-2}$. Single defect creation is demonstrated by photon antibunching in intensity-correlation experiments, thus establishing our approach as a reproducible procedure for generating single artificial atoms in silicon for quantum technologies.

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