Abstracts

Diamond nanogratings for detecting external nuclear spins - fabrication and characterization

Presenting Author: Francisco Benito, The University of New Mexico
Contributing Author(s): Nazanin Mosavian1, Pauli Kehayias2, Andrey Jarmola3, Victor M. Acosta1,4 1 Center for High Technology Materials, The University of New Mexico, Albuquerque, NM, USA 2 Harvard-Smithsonian Center for Astrophysics, Harvard University, Cambridge, MA, USA 3 Department of Physics, University of California, Berkeley, CA, USA 4 Department of Physics and Astronomy, The University of New Mexico, Albuquerque, NM, USA

Nitrogen-vacancy (NV) centers in diamond are an atom-like system in a solid-state host with unparalleled potential for nanoscale metrology. The NV ground electronic state is a paramagnetic spin triplet, and it exhibits long-lived spin coherences that can be detected using optically detected magnetic resonance (ODMR) techniques at ambient temperature. In our lab, we have developed a sensing platform based on pulsed ODMR of NV centers in dense, high-aspect-ratio diamond nanogratings. In this poster, we present details of the fabrication, characterization, and initial results of trace chemical sensing using this platform. An analyte is delivered to the device and maintains contact with the nanostructured diamond surface. The magnetic field from the precessing nuclear magnetization of the analyte is encoded in the NV fluorescence using multi-pulse ODMR spectroscopy. In this way, the analyte nuclear magnetic resonance spectrum can be detected optically using just nanoliters of analyte.

(Session 5 : Thursday from 5:00 - 7:00 pm)

 

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