Suppression of phonon sidebands in the spectrum of nitrogen vacancy centers in diamond nano-crystals

Hong-Quan Zhao; Masazumi Fujiwara; Shigeki Takeuchi

doi:10.1117/12.906638

23 February 2012 Suppression of phonon sidebands in the spectrum of nitrogen vacancy centers in diamond nano-crystals

Hong-Quan Zhao, Masazumi Fujiwara, Shigeki Takeuchi

Proceedings Volume 8272, Advances in Photonics of Quantum Computing, Memory, and Communication V; 82720W (2012) https://doi.org/10.1117/12.906638
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We report the substrate effects on the zero-phonon transitions and suppression of phonon side bands in the NV center spectrum. Fluorescence spectra of NV centers in cryogenic temperatures were measured by depositing diamond nanocrystals on different substrates including glass slides, undoped Si, and silica (1~2μm) on undoped Si (SiO₂/Si). We found that SiO₂/Si substrate was an effective substrate to suppress the phonon side band from spectra of NV^- centers. Temperature dependence of NV^- zero-phonon line Debye-Waller factor on Si and SiO₂/Si were measured, from 2.5K to 230K, Debye-Waller factor decreased linearly on both of the two substrates.

Citation Download Citation

Hong-Quan Zhao, Masazumi Fujiwara, and Shigeki Takeuchi "Suppression of phonon sidebands in the spectrum of nitrogen vacancy centers in diamond nano-crystals", Proc. SPIE 8272, Advances in Photonics of Quantum Computing, Memory, and Communication V, 82720W (23 February 2012); https://doi.org/10.1117/12.906638

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