Quantum interference of resonance fluorescence from Germanium-vacancy color centers in diamond
Quantum interference of resonance fluorescence from Germanium-vacancy color centers in diamond
Resonance fluorescence from a quantum emitter is an ideal source to extract indistinguishable photons. By using the cross-polarization to suppress the laser scattering, we observed resonance fluorescence from GeV color centers in diamond at cryogenic temperature. The Fourier-transform-limited line width emission with T2/2T1 ∼ 0.86 allows for two-photon interference based on single GeV color center. Under pulsed excitation, the separated photons exhibit a Hong–Ou–Mandel quantum interference above classical limit, whereas the continuous-wave excitation leads to a coalescence time window of 1.05 radiative lifetime. In addition, we demonstrated a single-shot readout of spin states with a fidelity of 74%. Our experiments lay down the foundation for building a quantum network with GeV color centers in diamond.
6306-6312
Chen, Discheng
c5de415a-bd04-4a70-bbbb-b0be26934880
Froch, Johannes E.
a913de40-786c-4095-aff1-5873b9ace254
Ru, Shihao
e1f29aed-31f3-4f01-946e-0ae660743cff
Cai, Hongbing
73213314-8ae1-42cd-8a3c-eeee9a904221
Wang, Naizhou
88394091-cc7a-46f3-943d-5ac1e74ff593
Adamo, Giorgio
bd560ab5-b151-4000-9ec9-26b060835a4d
Scott, John
d0b18570-3736-4a03-a683-952503751104
Li, Fuli
30e00b03-18d3-43c4-bbc8-dab09899806e
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Aharonovich, Igor
69f131bd-e12a-4139-97aa-5b2e8bd7d8e1
Gao, Weibo
e0d92497-bf40-4698-a9e5-6286dcfe1d4e
Chen, Discheng
c5de415a-bd04-4a70-bbbb-b0be26934880
Froch, Johannes E.
a913de40-786c-4095-aff1-5873b9ace254
Ru, Shihao
e1f29aed-31f3-4f01-946e-0ae660743cff
Cai, Hongbing
73213314-8ae1-42cd-8a3c-eeee9a904221
Wang, Naizhou
88394091-cc7a-46f3-943d-5ac1e74ff593
Adamo, Giorgio
bd560ab5-b151-4000-9ec9-26b060835a4d
Scott, John
d0b18570-3736-4a03-a683-952503751104
Li, Fuli
30e00b03-18d3-43c4-bbc8-dab09899806e
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Aharonovich, Igor
69f131bd-e12a-4139-97aa-5b2e8bd7d8e1
Gao, Weibo
e0d92497-bf40-4698-a9e5-6286dcfe1d4e
Chen, Discheng, Froch, Johannes E., Ru, Shihao, Cai, Hongbing, Wang, Naizhou, Adamo, Giorgio, Scott, John, Li, Fuli, Zheludev, Nikolay, Aharonovich, Igor and Gao, Weibo
(2022)
Quantum interference of resonance fluorescence from Germanium-vacancy color centers in diamond.
Nano Letters, 22 (15), .
(doi:10.1021/acs.nanolett.2c01959).
Abstract
Resonance fluorescence from a quantum emitter is an ideal source to extract indistinguishable photons. By using the cross-polarization to suppress the laser scattering, we observed resonance fluorescence from GeV color centers in diamond at cryogenic temperature. The Fourier-transform-limited line width emission with T2/2T1 ∼ 0.86 allows for two-photon interference based on single GeV color center. Under pulsed excitation, the separated photons exhibit a Hong–Ou–Mandel quantum interference above classical limit, whereas the continuous-wave excitation leads to a coalescence time window of 1.05 radiative lifetime. In addition, we demonstrated a single-shot readout of spin states with a fidelity of 74%. Our experiments lay down the foundation for building a quantum network with GeV color centers in diamond.
Text
Quantum interference of resonance fluorescence
More information
Accepted/In Press date: 15 May 2022
e-pub ahead of print date: 1 August 2022
Identifiers
Local EPrints ID: 500455
URI: http://eprints.soton.ac.uk/id/eprint/500455
ISSN: 1530-6984
PURE UUID: d9a09ee7-cdf8-4361-b1ed-3a533e9f089e
Catalogue record
Date deposited: 30 Apr 2025 16:40
Last modified: 02 May 2025 01:35
Export record
Altmetrics
Contributors
Author:
Discheng Chen
Author:
Johannes E. Froch
Author:
Shihao Ru
Author:
Hongbing Cai
Author:
Naizhou Wang
Author:
Giorgio Adamo
Author:
John Scott
Author:
Fuli Li
Author:
Nikolay Zheludev
Author:
Igor Aharonovich
Author:
Weibo Gao
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics