Premium
Long‐Range, High‐Resolution Magnetic Imaging of Nanoparticles
Author(s) -
Yao Li,
Xu Shoujun
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200902114
Subject(s) - nanoparticle , magnetization , polarization (electrochemistry) , magnetic nanoparticles , coherence (philosophical gambling strategy) , magnetic field , optics , materials science , laser , nuclear magnetic resonance , molecular physics , nanotechnology , chemistry , physics , quantum mechanics
Seeing is believing : The magnetic field of nanoparticles can be sensed by a group of coherent cesium atoms at a long distance. The atomic coherence is generated by a near‐resonance‐polarized laser beam and gives off a signal in the form of polarization rotation of the light. By scanning the magnetic nanoparticles, both the distance and the absolute magnetization of the particles can be determined precisely.