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Principles and techniques of the quantum diamond microscope

Journal Article · · Nanophotonics (Online)
 [1];  [2];  [3];  [4];  [5];  [4];  [4];  [4];  [6]
  1. Harvard Univ., Cambridge, MA (United States); The MITRE Corporation, Bedford, MA (United States)
  2. Harvard Univ., Cambridge, MA (United States). Center for Brain Science
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Harvard Univ., Cambridge, MA (United States)
  5. Harvard Univ., Cambridge, MA (United States). Harvard-Smithsonian Center for Astrophysics
  6. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)

We provide an overview of the experimental techniques, measurement modalities, and diverse applications of the quantum diamond microscope (QDM). The QDM employs a dense layer of fluorescent nitrogen-vacancy (NV) color centers near the surface of a transparent diamond chip on which a sample of interest is placed. NV electronic spins are coherently probed with microwaves and optically initialized and read out to provide spatially resolved maps of local magnetic fields. NV fluorescence is measured simultaneously across the diamond surface, resulting in a wide-field, two-dimensional magnetic field image with adjustable spatial pixel size set by the parameters of the imaging system. NV measurement protocols are tailored for imaging of broadband and narrowband fields, from DC to GHz frequencies. Here we summarize the physical principles common to diverse implementations of the QDM and review example applications of the technology in geoscience, biology, and materials science.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1769916
Report Number(s):
SAND--2021-2098J; 693995
Journal Information:
Nanophotonics (Online), Journal Name: Nanophotonics (Online) Journal Issue: 11 Vol. 8; ISSN 2192-8614
Publisher:
de GruyterCopyright Statement
Country of Publication:
United States
Language:
English

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