Quantifying the number of color centers in single fluorescent nanodiamonds by photon correlation spectroscopy and Monte Carlo simulation

Yuen Yung Hui, Yi Ren Chang, Tsong Shin Lim, Hsu Yang Lee, Wunshain Fann, Huan Cheng Chang

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The number of negatively charged nitrogen-vacancy centers (N-V) - in fluorescent nanodiamond (FND) has been determined by photon correlation spectroscopy and Monte Carlo simulations at the single particle level. By taking account of the random dipole orientation of the multiple (N-V) - fluorophores and simulating the probability distribution of their effective numbers (Ne), we found that the actual number (Na) of the fluorophores is in linear correlation with Ne, with correction factors of 1.8 and 1.2 in measurements using linearly and circularly polarized lights, respectively. We determined Na =8±1 for 28 nm FND particles prepared by 3 MeV proton irradiation.

Original languageEnglish
Article number013104
JournalApplied Physics Letters
Issue number1
Publication statusPublished - 2009 Jan 19


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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