Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror
Dewen Duan,Vinaya Kumar Kavatamane,Sri Ranjini Arumugam,Ganesh Rahane,Yan-Kai Tzeng,Yan-Kai Tzeng,Huan-Cheng Chang,Hitoshi Sumiya,Shinobu Onoda,Junichi Isoya,Gopalakrishnan Balasubramanian,Gopalakrishnan Balasubramanian +11 more
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In this paper, a simple and robust optical fiber based method was proposed to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV) defects containing micro-crystalline diamond.Abstract:
We experimentally demonstrate a simple and robust optical fiber based method to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV) defects containing micro-crystalline diamond. We fabricate a suitable micro-concave mirror that focuses scattered excitation laser light into the diamond located at the focal point of the mirror. At the same instance, the mirror also couples the fluorescence light exiting out of the diamond crystal in the opposite direction of the optical fiber back into the optical fiber within its light acceptance cone. This part of fluorescence would have been otherwise lost from reaching the detector. Our proof-of-principle demonstration achieves a 25 times improvement in fluorescence collection compared to the case of not using any mirrors. The increase in light collection favors getting high signal-to-noise ratio optically detected magnetic resonance signals and hence offers a practical advantage in fiber-based NV quantum sensors. Additionally, we compacted the NV sensor system by replacing some bulky optical elements in the optical path with a 1 × 2 fiber optical coupler in our optical system. This reduces the complexity of the system and provides portability and robustness needed for applications like magnetic endoscopy and remote-magnetic sensing.read more
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Nanofabricated solid immersion lenses registered to single emitters in diamond (vol 98, 133107, 2011)
L. Marseglia,J. P. Hadden,A. C. Stanley-Clarke,Joanne Harrison,Brian R. Patton,Ho Y-Ld.,Boris Naydenov,Fedor Jelezko,J. Meijer,Philip R. Dolan,Jason M. Smith,J. G. Rarity,Jeremy L. O'Brien +12 more
TL;DR: In this paper, a technique for fabricating micro-and nanostructures incorporating fluorescent defects in diamond with a positional accuracy better than hundreds of nanometers is described, using confocal fluorescence microscopy and focused ion beam etching.
Journal ArticleDOI
Toward Quantitative Bio-sensing with Nitrogen-Vacancy Center in Diamond.
Tongtong Zhang,Goutam Pramanik,Kai Zhang,Michal Gulka,Lingzhi Wang,Jixiang Jing,Feng Xu,Zifu Li,Qiang Wei,Petr Cigler,Zhiqin Chu +10 more
TL;DR: In this article, the authors summarized the latest developments of nitrogen-vacancy (NV) based quantum sensing with a focus on biomedical applications, including measurements of magnetic biomaterials, intracellular temperature, localized physiological species, action potentials, and electronic and nuclear spins.
Journal ArticleDOI
Integrated and Portable Magnetometer Based on Nitrogen-Vacancy Ensembles in Diamond
Felix M. Stürner,Felix M. Stürner,Andreas Brenneis,Thomas Buck,Julian Kassel,Robert Rölver,Tino Fuchs,Anton Savitsky,Dieter Suter,Jens Grimmel,Stefan Hengesbach,Michael Förtsch,Kazuo Nakamura,Hitoshi Sumiya,Shinobu Onoda,Junichi Isoya,Fedor Jelezko +16 more
TL;DR: In this article, a fiber-based nitrogen-vacancy (NV) magnetometer with a sensitivity of 344 pT/SqrtHz has been demonstrated for magnetic field measurements at room temperature.
Journal ArticleDOI
Efficient nitrogen-vacancy centers’ fluorescence excitation and collection from micrometer-sized diamond by a tapered optical fiber in endoscope-type configuration
Dewen Duan,Guan-Xiang Du,Vinaya Kumar Kavatamane,Sri Ranjini Arumugam,Yan-Kai Tzeng,Huan-Cheng Chang,Gopalakrishnan Balasubramanian +6 more
TL;DR: A tapered optical fiber (TOF) tip is used to significantly improve the efficiency of the laser excitation and fluorescence collection of the NV ensembles in diamond, which could potentially enhance the sensitivity and spatial resolution of theNV-based endoscope-type sensor.
Journal ArticleDOI
A fiber based diamond RF B-field sensor and characterization of a small helical antenna
TL;DR: In this article, a diamond micro-crystal containing a nitrogen vacancy center was used for B-field imaging of a helical antenna with sub-100 μm resolution and compared with numerical simulations.
References
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Nanometre-scale thermometry in a living cell
Georg Kucsko,Peter Maurer,Norman Y. Yao,Michael Kubo,Hyun Ji Noh,Peggy Lo,Hongkun Park,Mikhail D. Lukin +7 more
TL;DR: A new approach to nanoscale thermometry is demonstrated that uses coherent manipulation of the electronic spin associated with nitrogen–vacancy colour centres in diamond to detect temperature variations as small as 1.8 mK in an ultrapure bulk diamond sample and demonstrate temperature-gradient control and mapping at the subcellular level.
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Electric-field sensing using single diamond spins
Florian Dolde,Helmut Fedder,Marcus W. Doherty,Tobias Nöbauer,F. Rempp,Gopalakrishnan Balasubramanian,Thomas Wolf,Friedemann Reinhard,Lloyd C. L. Hollenberg,Fedor Jelezko,Joerg Wrachtrup +10 more
TL;DR: In this paper, point defects in diamond known as nitrogen-vacancy centres have been shown to be sensitive to minute magnetic fields, even at room temperature, and a demonstration that the spin associated with these defect centres is also sensitive to electric fields holds out the prospect of a sensor that can resolve single spins and single elementary charges at the nanoscale.
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High precision nano scale temperature sensing using single defects in diamond
Philipp Neumann,Ingmar Jakobi,Florian Dolde,Christian Burk,Rolf Reuter,G. Waldherr,Jan Honert,Thomas Wolf,Andreas Brunner,J. H. Shim,Dieter Suter,Hitoshi Sumiya,Junichi Isoya,Jörg Wrachtrup +13 more
TL;DR: This work experimentally demonstrates a novel nanoscale temperature sensing technique based on optically detected electron spin resonance in single atomic defects in diamonds, which should allow the measurement of the heat produced by chemical interactions involving a few or single molecules even in heterogeneous environments like cells.
Journal ArticleDOI
Temperature Dependence of the Nitrogen-Vacancy Magnetic Resonance in Diamond
Victor M. Acosta,Erik Bauch,Erik Bauch,Micah P. Ledbetter,A. Waxman,Louis-S. Bouchard,Dmitry Budker,Dmitry Budker +7 more
TL;DR: The temperature dependence of the ZFS parameters presents a significant challenge for diamond magnetometers and may ultimately limit their bandwidth and sensitivity.
Journal ArticleDOI
High-Precision Nanoscale Temperature Sensing Using Single Defects in Diamond
Philipp Neumann,Ingmar Jakobi,Florian Dolde,Christian Burk,Rolf Reuter,G. Waldherr,Jan Honert,Thomas Wolf,Andreas-David Brunner,J. H. Shim +9 more
TL;DR: In this paper, a novel nanoscale temperature sensing technique based on optically detected electron spin resonance in single atomic defects in diamonds has been proposed to measure the heat produced by chemical interactions involving a few or single molecules.