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Müller C, Kong X, Cai JM, Melentijević K, Stacey A, Markham M, Twitchen D, Isoya J, Pezzagna S, Meijer J, Du JF, Plenio MB, Naydenov B, McGuinness LP, Jelezko F. Nuclear magnetic resonance spectroscopy with single spin sensitivity. Nat Commun 2014; 5:4703. [PMID: 25146503 PMCID: PMC4143926 DOI: 10.1038/ncomms5703] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 07/15/2014] [Indexed: 12/17/2022] Open
Abstract
Nuclear magnetic resonance spectroscopy and magnetic resonance imaging at the ultimate sensitivity limit of single molecules or single nuclear spins requires fundamentally new detection strategies. The strong coupling regime, when interaction between sensor and sample spins dominates all other interactions, is one such strategy. In this regime, classically forbidden detection of completely unpolarized nuclei is allowed, going beyond statistical fluctuations in magnetization. Here we realize strong coupling between an atomic (nitrogen-vacancy) sensor and sample nuclei to perform nuclear magnetic resonance on four (29)Si spins. We exploit the field gradient created by the diamond atomic sensor, in concert with compressed sensing, to realize imaging protocols, enabling individual nuclei to be located with Angstrom precision. The achieved signal-to-noise ratio under ambient conditions allows single nuclear spin sensitivity to be achieved within seconds.
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Affiliation(s)
- C Müller
- 1] Institute for Quantum Optics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany [2] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany [3]
| | - X Kong
- 1] Institute for Quantum Optics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany [2] Department of Modern Physics, Hefei National Laboratory for Physics Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China [3] Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China [4]
| | - J-M Cai
- 1] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany [2] Institute for Theoretical Physics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany
| | - K Melentijević
- 1] Institute for Quantum Optics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany [2] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany
| | - A Stacey
- Element Six, Ltd., Ascot, Berkshire SL5 8BP, UK
| | - M Markham
- Element Six, Ltd., Ascot, Berkshire SL5 8BP, UK
| | - D Twitchen
- Element Six, Ltd., Ascot, Berkshire SL5 8BP, UK
| | - J Isoya
- Research Center for Knowledge Communities, University of Tsukuba, 1-2 Kasuga, Tsukuba, Ibaraki 305-8550, Japan
| | - S Pezzagna
- Experimental Physics II, University Leipzig, Linnéstr. 5, 03401 Leipzig, Germany
| | - J Meijer
- Experimental Physics II, University Leipzig, Linnéstr. 5, 03401 Leipzig, Germany
| | - J F Du
- 1] Department of Modern Physics, Hefei National Laboratory for Physics Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - M B Plenio
- 1] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany [2] Institute for Theoretical Physics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany
| | - B Naydenov
- 1] Institute for Quantum Optics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany [2] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany
| | - L P McGuinness
- 1] Institute for Quantum Optics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany [2] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany
| | - F Jelezko
- 1] Institute for Quantum Optics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany [2] Center for Integrated Quantum Science and Technology, University of Ulm, Ulm D-89081 Germany
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Siyushev P, Kaiser F, Jacques V, Gerhardt I, Bischof S, Fedder H, Dodson J, Markham M, Twitchen D, Jelezko F, Wrachtrup J. Monolithic diamond optics for single photon detection. Appl Phys Lett 2010; 97:241902. [PMID: 21221249 PMCID: PMC3017569 DOI: 10.1063/1.3519849] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Accepted: 10/16/2010] [Indexed: 05/22/2023]
Abstract
In this work, we experimentally demonstrate a novel and simple approach that uses off-the-shelf optical elements to enhance the collection efficiency from a single emitter. The key component is a solid immersion lens made of diamond, the host material for single color centers. We improve the excitation and detection of single emitters by one order of magnitude, as predicted by theory.
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Jacques V, Neumann P, Beck J, Markham M, Twitchen D, Meijer J, Kaiser F, Balasubramanian G, Jelezko F, Wrachtrup J. Dynamic polarization of single nuclear spins by optical pumping of nitrogen-vacancy color centers in diamond at room temperature. Phys Rev Lett 2009; 102:057403. [PMID: 19257552 DOI: 10.1103/physrevlett.102.057403] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Indexed: 05/27/2023]
Abstract
We report a versatile method to polarize single nuclear spins in diamond, based on optical pumping of a single nitrogen-vacancy (NV) defect and mediated by a level anticrossing in its excited state. A nuclear-spin polarization higher than 98% is achieved at room temperature for the 15N nuclear spin associated with the NV center, corresponding to microK effective nuclear-spin temperature. We then show simultaneous initialization of two nuclear spins in the vicinity of a NV defect. Such robust control of nuclear-spin states is a key ingredient for further scaling up of nuclear-spin based quantum registers in diamond.
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Affiliation(s)
- V Jacques
- 3. Physikalisches Institut, Universität Stuttgart, 70550 Stuttgart, Germany.
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