Berlin 2015 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

BP: Fachverband Biologische Physik

BP 13: Posters: Imaging and Superresolution Optical Microscopy

BP 13.2: Poster

Montag, 16. März 2015, 17:30–19:30, Poster A

Wide Field Detection and Imaging of Atomic Spins using Nitrogen-Vacancy Centers — •Florestan Ziem, Philipp Scheiger, Helmut Fedder, and Jörg Wrachtrup — 3. Physikalisches Institut und SCoPE, Universität Stuttgart

Electron and nuclear magnetic resonance provide information ranging from composition over structure to function of diverse samples in material and life sciences, as well as medical diagnostics. Applied at micro- and nanoscale dimensions, these technique provide label-free imaging and eventually single molecule analysis, e.g. revealing the structure of proteins or membrane channel mechanisms. Traditional induction based magnetic resonance sensing schemes are blind to such vanishing sample volumes, directing the focus at novel sensors. Here, we show how nitrogen-vacancy centers in diamond hosts allow the detection of small ensembles of electronic [1,2] and nuclear [3,4] spins at ambient conditions by optically detected magnetic resonance. In a wide field microscope, parallel magnetic detection and imaging on the microscale are demonstrated.

[1] Steinert, S. et al. Magnetic spin imaging under ambient conditions with sub-cellular resolution. Nat. Commun. 4, 1607 (2013).

[2] Ziem, F. C., et al. Highly sensitive detection of physiological spins in a microfluidic device. Nano Lett. 13, 4093 (2013).

[3] Mamin, H. J. et al. Nanoscale Nuclear Magnetic Resonance with a Nitrogen-Vacancy Spin Sensor. Science 339, 557 (2013).

[4] Staudacher, T. et al. Nuclear Magnetic Resonance Spectroscopy on a (5-Nanometer)³ Sample Volume. Science 339, 561 (2013).