Low temperature investigations and surface treatments of colloidal narrowband fluorescent nanodiamonds

We report fluorescence investigations and Raman spectroscopy on colloidal nanodiamonds (NDs) obtained via bead assisted sonic disintegration (BASD) of a polycrystalline chemical vapor deposition film. The BASD NDs contain in situ created silicon vacancy (SiV) centers. Whereas many NDs exhibit emissi...

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Bibliographic Details
Published in:arXiv.org 2013-05
Main Authors: Neu, Elke, Guldner, Felix, Arend, Carsten, Liang, Yuejiang, Ghodbane, Slimane, Sternschulte, Hadwig, Steinmueller-Nethl, Doris, Krueger, Anke, Becher, Christoph
Format: Article
Language:English
Subjects:
Chemical vapor deposition
Diamonds
Disintegration
Emission analysis
Fluorescence
Nanostructure
Narrowband
Organic chemistry
Oxidation
Photon emission
Raman spectroscopy
Temperature dependence
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Summary:We report fluorescence investigations and Raman spectroscopy on colloidal nanodiamonds (NDs) obtained via bead assisted sonic disintegration (BASD) of a polycrystalline chemical vapor deposition film. The BASD NDs contain in situ created silicon vacancy (SiV) centers. Whereas many NDs exhibit emission from SiV ensembles, we also identify NDs featuring predominant emission from a single bright SiV center. We demonstrate oxidation of the NDs in air as a tool to optimize the crystalline quality of the NDs via removing damaged regions resulting in a reduced ensemble linewidth as well as single photon emission with increased purity. We furthermore investigate the temperature dependent zero-phonon-line fine-structure of a bright single SiV center as well as the polarization properties of its emission and absorption.
ISSN:2331-8422
DOI:10.48550/arxiv.1302.3188