Abstract
Substrates effect is observed on the suppression of the phonon sideband from nitrogen vacancy (NV) centers in 50nm diamond nanocrystals at cryogenic temperatures. As a quantitative parameter of the population of phonon sidebands, the Debye-Waller factor is estimated from fluorescence spectra on glass, silicon, and silica-on-silicon substrates. Fluorescence spectra of negatively charged NV centers in nanodiamonds on silica-on-silicon substrates have average and maximum Debye-Waller factors of 12.7% (which is about six times greater than that of samples on glass substrates) and 19.3%, respectively. This effect is expected to be very important for future applications of NV centers in quantum information science and nanosensing.
Original language | English |
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Pages (from-to) | 15628-15635 |
Number of pages | 8 |
Journal | Optics Express |
Volume | 20 |
Issue number | 14 |
DOIs | |
Publication status | Published - Jul 2 2012 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics