Optical and spin coherence properties of nitrogen-vacancy centers placed in a 100 nm thick isotopically purified diamond layer

Toyofumi Ishikawa, Kai Mei C. Fu, Charles Santori, Victor M. Acosta, Raymond G. Beausoleil, Hideyuki Watanabe, Shinichi Shikata, Kohei M. Itoh

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

We have studied optical and spin properties of near-surface nitrogen-vacancy (NV) centers incorporated during chemical vapor phase growth of isotopically purified 12C single-crystal diamond layers. The spectral diffusion-limited line width of zero-phonon luminescence from the NV centers is 1.2 ± 0.5 GHz, a considerable improvement over that of NV centers formed by ion implantation and annealing. Enhanced spin dephasing times (T 2* ≈ 90 μs, T 2 ≈ 1.7 ms) due to the reduction of 13C nuclear spins persist even for NV centers placed within 100 nm of the surface.

Original languageEnglish
Pages (from-to)2083-2087
Number of pages5
JournalNano Letters
Volume12
Issue number4
DOIs
Publication statusPublished - 2012 Apr 11

Keywords

  • chemical vapor deposition
  • diamond
  • magnetometry
  • nitrogen-vacancy center
  • quantum information processing

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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  • Cite this

    Ishikawa, T., Fu, K. M. C., Santori, C., Acosta, V. M., Beausoleil, R. G., Watanabe, H., Shikata, S., & Itoh, K. M. (2012). Optical and spin coherence properties of nitrogen-vacancy centers placed in a 100 nm thick isotopically purified diamond layer. Nano Letters, 12(4), 2083-2087. https://doi.org/10.1021/nl300350r