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Scanning confocal optical microscopy and magnetic resonance on single defect centers
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In this article, the fluorescence of individual nitrogen-vacancy defect centers in diamond was observed with room-temperature scanning confocal optical microscopy, and the centers were photostable, showing no detectable change in their fluorescence emission spectrum as a function of time.Abstract:
The fluorescence of individual nitrogen-vacancy defect centers in diamond was observed with room-temperature scanning confocal optical microscopy. The centers were photostable, showing no detectable change in their fluorescence emission spectrum as a function of time. Magnetic resonance on single centers at room temperature was shown to be feasible. The magnetic resonance spectra revealed marked changes in zero-field splitting parameters among different centers. These changes were attributed to strain-induced differences in the symmetry of the centers.read more
Citations
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Quantum Computing
Thaddeus D. Ladd,Fedor Jelezko,Raymond Laflamme,Yasunobu Nakamura,Christopher Monroe,Jeremy L. O'Brien +5 more
TL;DR: A number of physical systems, spanning much of modern physics, are being developed for this task, ranging from single particles of light to superconducting circuits, and it is not yet clear which, if any, will ultimately prove successful as discussed by the authors.
Journal ArticleDOI
Quantum sensing
Abstract: "Quantum sensing" describes the use of a quantum system, quantum properties or quantum phenomena to perform a measurement of a physical quantity Historical examples of quantum sensors include magnetometers based on superconducting quantum interference devices and atomic vapors, or atomic clocks More recently, quantum sensing has become a distinct and rapidly growing branch of research within the area of quantum science and technology, with the most common platforms being spin qubits, trapped ions and flux qubits The field is expected to provide new opportunities - especially with regard to high sensitivity and precision - in applied physics and other areas of science In this review, we provide an introduction to the basic principles, methods and concepts of quantum sensing from the viewpoint of the interested experimentalist
Journal ArticleDOI
Nanoscale imaging magnetometry with diamond spins under ambient conditions
Gopalakrishnan Balasubramanian,I. Y. Chan,I. Y. Chan,Roman Kolesov,Mohannad Al-Hmoud,Julia Tisler,Chang S. Shin,Changdong Kim,Aleksander K. Wójcik,Philip R. Hemmer,Anke Krueger,Tobias Hanke,Alfred Leitenstorfer,Rudolf Bratschitsch,Fedor Jelezko,Jörg Wrachtrup +15 more
TL;DR: This work shows how magneto-optical spin detection can be used to determine the location of a spin associated with a single nitrogen-vacancy centre in diamond with nanometre resolution under ambient conditions, and demonstrates the use of a single diamond spin as a scanning probe magnetometer to map nanoscale magnetic field variations.
Journal ArticleDOI
The nitrogen-vacancy colour centre in diamond
Marcus W. Doherty,Marcus W. Doherty,Neil B. Manson,Paul Delaney,Paul Delaney,Fedor Jelezko,Joerg Wrachtrup,Lloyd C. L. Hollenberg +7 more
TL;DR: The nitrogen-vacancy (NV) colour centre in diamond is an important physical system for emergent quantum technologies, including quantum metrology, information processing and communications, as well as for various nanotechnologies such as biological and sub-diffraction limit imaging, and for tests of entanglement in quantum mechanics as mentioned in this paper.
Journal ArticleDOI
The nitrogen-vacancy colour centre in diamond
Marcus W. Doherty,Marcus W. Doherty,Neil B. Manson,Paul Delaney,Paul Delaney,Fedor Jelezko,Joerg Wrachtrup,Lloyd C. L. Hollenberg +7 more
TL;DR: The nitrogen-vacancy (NV) colour centre in diamond is an important physical system for emergent quantum technologies, including quantum metrology, information processing and communications, as well as for various nanotechnologies such as biological and sub-diffraction limit imaging, and for tests of entanglement in quantum mechanics as mentioned in this paper.
References
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Journal ArticleDOI
Fluorescence intermittency in single cadmium selenide nanocrystals
M. Nirmal,M. Nirmal,B. O. Dabbousi,Moungi G. Bawendi,John J. Macklin,John J. Macklin,J. K. Trautman,J. K. Trautman,Timothy D. Harris,Timothy D. Harris,Louis E. Brus,Louis E. Brus +11 more
TL;DR: In this article, it was shown that light emission from single fluorescing nanocrystals of cadmium selenide under continuous excitation turns on and off intermittently with a characteristic timescale of about 0.5 seconds.
Journal ArticleDOI
Single molecules observed by near-field scanning optical microscopy.
Eric Betzig,Robert J. Chichester +1 more
TL;DR: Individual carbocyanine dye molecules in a sub-monolayer spread have been imaged with near-field scanning optical microscopy and the orientation of each molecular dipole can be determined to map the electric field distribution in the near- field aperture with molecular spatial resolution.
Journal ArticleDOI
Electron spin resonance in the study of diamond
J H N Loubser,J. A. Van Wyk +1 more
TL;DR: The role of electron spin resonance in the study of both natural and synthetic diamond is reviewed in this paper, where a brief survey of the physical significance of the constants in the spin Hamiltonian, as well as experimental technique, is given.