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Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots

Siampour Hamidreza et al · Wiley · 2020

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Author / responsible party
Siampour Hamidreza et al
Publisher
Wiley
Year
2020
ISSN
2192-8614
ISSN
2192-8614
Language
English
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3-D near-field imaging of guided modes in nanophotonic waveguides

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Striving for nanometer-sized solid-state single-photon sources, we investigate atom-like quantum emitters based on single germanium-vacancy (GeV) centers isolated in crystalline nanodiamonds (NDs). Cryogenic characterization indicated symmetry-protected and bright (>106 counts/s with off-resonance excitation) zero-phonon optical transitions with up to 6-fold enhancement in energy splitting of their ground states as compared to that found for GeV centers in bulk diamonds (i.e. up to 870 GHz in highly strained NDs vs. 150 GHz in bulk). Utilizing lithographic alignment techniques, we demonstrate an integrated nanophotonic platform for deterministic interfacing plasmonic waveguides with isolated GeV centers in NDs, which enables 10-fold enhancement of single-photon decay rates along with the emission direction control by judiciously designing and positioning a Bragg reflector. This approach allows one to realize the unidirectional emission from single-photon dipolar sources, thereby opening new perspectives for the realization of quantum optical integrated circuits.

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APA 7

al, S. H. E. (2020). Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots. https://doi.org/10.1515/nanoph-2020-0036

MLA

al, Siampour Hamidreza et. "Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots." 2020. https://doi.org/10.1515/nanoph-2020-0036.

Chicago

al, Siampour Hamidreza et. 2020. "Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots.". https://doi.org/10.1515/nanoph-2020-0036.

Harvard

al, S. H. E. 2020, Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots, Wiley, available at: https://doi.org/10.1515/nanoph-2020-0036 [Accessed 9 Aug. 2026].

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Title
Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots
Author / contributors
Siampour Hamidreza et al
Publisher
Wiley
Publication year
2020
ISSN
2192-8614
ISSN
2192-8614
Language
English

Subjects

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unidirectional surface plasmon polariton (spp) coupler; nanodiamonds; germanium-vacancy (gev) centers; near-field microscopy; integrated quantum photonics
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