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Scanning Confocal Optical Microscopy and Magnetic Resonance on Single Defect Centers

Science  27 Jun 1997:
Vol. 276, Issue 5321, pp. 2012-2014
DOI: 10.1126/science.276.5321.2012

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Abstract

The fluorescence of individual nitrogen-vacancy defect centers in diamond was observed with room-temperature scanning confocal optical microscopy. The centers were photostable, showing no detectable change in their fluorescence emission spectrum as a function of time. Magnetic resonance on single centers at room temperature was shown to be feasible. The magnetic resonance spectra revealed marked changes in zero-field splitting parameters among different centers. These changes were attributed to strain-induced differences in the symmetry of the centers.

  • * To whom correspondence should be addressed. E-mail: wrachtru{at}physik.tu-chemnitz.de

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