Single nitrogen vacancy centers in chemical vapor deposited diamond nanocrystals

  • 18 June 2007
Abstract
We report the fabrication of single nitrogen-vacancy (NV) color centers in chemical vapor deposited diamond nanocrystals. The optimal size for single optically active NV incorporation was measured using a combined atomic force microscope, scanning confocal microscope and Hanbury-Brown and Twiss interferometer and found to be 60 to 70 nm. The average number of NV centers observed per crystallite was found to rise rapidly as the crystallite size increases above 70nm. The findings highlight a strong dependence of NV incorporation on crystal size, particularly with crystals less than 50 nm in size.

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