Principles and techniques of the quantum diamond microscope

Nanophotonics

article

Edlyn V. Levine¹  Ronald L. Walsworth³  Matthew J. Turner¹  Pauli Kehayias⁵  Connor A. Hart¹  Nicholas Langellier¹  Raisa Trubko¹  David R. Glenn¹  Roger R. Fu⁶ 

[1] Department of Physics, Harvard University;The MITRE Corporation;Harvard-Smithsonian Center for Astrophysics;Center for Brain Science, Harvard University;Sandia National Laboratories;Department of Earth and Planetary Sciences, Harvard University

关键词: NV diamond;    magnetic imaging;    magnetometry;    quantum sensing;    quantum diamond microscope;    NV ensemble;   

DOI  :  10.1515/nanoph-2019-0209

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

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.

【 授权许可】

CC BY