Reaching the quantum limit of sensitivity ...
Document type :
Compte-rendu et recension critique d'ouvrage
DOI :
Title :
Reaching the quantum limit of sensitivity in electron spin resonance
Author(s) :
Bienfait, A [Auteur]
Quantronics Group [QUANTRONICS]
Kubo, Y [Auteur]
Quantronics Group [QUANTRONICS]
Stern, M [Auteur]
Bar-Ilan University [Israël]
Quantronics Group [QUANTRONICS]
Zhou, Xin [Auteur]
Quantronics Group [QUANTRONICS]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Schenkel, T [Auteur]
Lawrence Berkeley National Laboratory [Berkeley] [LBNL]
Vion, D [Auteur]
Quantronics Group [QUANTRONICS]
Esteve, D [Auteur]
Quantronics Group [QUANTRONICS]
Julsgaard, B [Auteur]
Department of Physics and Astronomy [Aarhus]
Mølmer, K [Auteur]
Department of Physics and Astronomy [Aarhus]
Bertet, P. [Auteur correspondant]
Quantronics Group [QUANTRONICS]
Pla, J;j. [Auteur]
London Centre for Nanotechnology
Lo, C.C. [Auteur]
London Centre for Nanotechnology
Morton, J.J.L. [Auteur]
London Centre for Nanotechnology
Quantronics Group [QUANTRONICS]
Kubo, Y [Auteur]
Quantronics Group [QUANTRONICS]
Stern, M [Auteur]
Bar-Ilan University [Israël]
Quantronics Group [QUANTRONICS]
Zhou, Xin [Auteur]
![refId](/themes/Mirage2//images/idref.png)
Quantronics Group [QUANTRONICS]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Schenkel, T [Auteur]
Lawrence Berkeley National Laboratory [Berkeley] [LBNL]
Vion, D [Auteur]
Quantronics Group [QUANTRONICS]
Esteve, D [Auteur]
Quantronics Group [QUANTRONICS]
Julsgaard, B [Auteur]
Department of Physics and Astronomy [Aarhus]
Mølmer, K [Auteur]
Department of Physics and Astronomy [Aarhus]
Bertet, P. [Auteur correspondant]
Quantronics Group [QUANTRONICS]
Pla, J;j. [Auteur]
London Centre for Nanotechnology
Lo, C.C. [Auteur]
London Centre for Nanotechnology
Morton, J.J.L. [Auteur]
London Centre for Nanotechnology
Journal title :
Nature Nanotechnology
Pages :
253-257
Publisher :
Nature Publishing Group
Publication date :
2015
ISSN :
1748-3387
HAL domain(s) :
Physique [physics]
English abstract : [en]
The detection and characterization of paramagnetic species by electron spin resonance (ESR) spectroscopy is widely used throughout chemistry, biology and materials science 1 , from in vivo imaging 2 to distance measurements ...
Show more >The detection and characterization of paramagnetic species by electron spin resonance (ESR) spectroscopy is widely used throughout chemistry, biology and materials science 1 , from in vivo imaging 2 to distance measurements in spin-labelled proteins 3. ESR relies on the inductive detection of microwave signals emitted by the spins into a coupled microwave resonator during their Larmor precession. However, such signals can be very small, prohibiting the application of ESR at the nanoscale (for example, at the single-cell level or on individual nanoparticles). Here, using a Josephson parametric microwave amplifier combined with high-quality-factor super-conducting microresonators cooled at millikelvin temperatures, we improve the state-of-the-art sensitivity of inductive ESR detection by nearly four orders of magnitude 4,5. We demonstrate the detection of 1,700 bismuth donor spins in silicon within a single Hahn 6 echo with unit signal-to-noise ratio, reduced to 150 spins by averaging a single Carr–Purcell– Meiboom–Gill sequence 7. This unprecedented sensitivity reaches the limit set by quantum fluctuations of the electromagnetic field instead of thermal or technical noise, which constitutes a novel regime for magnetic resonance. The detection volume of our resonator is ∼0.02 nl, and our approach can be readily scaled down further to improve sensitivity, providing a new versatile toolbox for ESR at the nanoscaleShow less >
Show more >The detection and characterization of paramagnetic species by electron spin resonance (ESR) spectroscopy is widely used throughout chemistry, biology and materials science 1 , from in vivo imaging 2 to distance measurements in spin-labelled proteins 3. ESR relies on the inductive detection of microwave signals emitted by the spins into a coupled microwave resonator during their Larmor precession. However, such signals can be very small, prohibiting the application of ESR at the nanoscale (for example, at the single-cell level or on individual nanoparticles). Here, using a Josephson parametric microwave amplifier combined with high-quality-factor super-conducting microresonators cooled at millikelvin temperatures, we improve the state-of-the-art sensitivity of inductive ESR detection by nearly four orders of magnitude 4,5. We demonstrate the detection of 1,700 bismuth donor spins in silicon within a single Hahn 6 echo with unit signal-to-noise ratio, reduced to 150 spins by averaging a single Carr–Purcell– Meiboom–Gill sequence 7. This unprecedented sensitivity reaches the limit set by quantum fluctuations of the electromagnetic field instead of thermal or technical noise, which constitutes a novel regime for magnetic resonance. The detection volume of our resonator is ∼0.02 nl, and our approach can be readily scaled down further to improve sensitivity, providing a new versatile toolbox for ESR at the nanoscaleShow less >
Language :
Anglais
Popular science :
Non
European Project :
Source :
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