Magnetic Resonance Spectroscopy on a Nanostructured Diamond Chip

  • Datum: 14.03.2017
  • Uhrzeit: 13:30 - 14:30
  • Vortragende(r): Andrey Jarmola
  • Department of Physics, University of California, Berkeley, California 94720, USA
  • Ort: Max-Planck-Institut für biophysikalische Chemie (MPIBPC)
  • Raum: Großer Seminarraum, Verwaltungsgebäude
  • Gastgeber: Silvia Arroyo Camejo
  • Kontakt: sarroyo@mpibpc.mpg.de
Diamonds doped with nitrogen-vacancy (NV) centers are a promising non-inductive platform for magnetic resonance spectroscopy, with the ability to operate at low fields and at room temperature. We have addressed the issue of long signal integration times for this platform by etching dense, high aspect ratio nanogratings on the diamond surface which enhance the surface area by a factor of 15. Using a solution of CsF in glycerol, we demonstrate that 4 ± 2 × 1012 19F spins in a ~ 1 pL volume, can be detected with a signal-to-noise ratio of 3 in 1 s integration [1]. This represents nearly two orders of magnitude improvement in concentration sensitivity over previous NV and picoliter nuclear magnetic resonance (NMR) studies.
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