Isotopically varying spectral features of silicon-vacancy in diamond
The silicon-vacancy centre ( ${\rm Si}{{{\rm V}}^{-}}$ ) in diamond has exceptional spectral properties for single-emitter quantum information applications. Most of the fluorescence is concentrated in a strong zero phonon line (ZPL), with a weak phonon sideband extending for 100 nm that contains sev...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2014-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/16/11/113019 |
| Summary: | The silicon-vacancy centre ( ${\rm Si}{{{\rm V}}^{-}}$ ) in diamond has exceptional spectral properties for single-emitter quantum information applications. Most of the fluorescence is concentrated in a strong zero phonon line (ZPL), with a weak phonon sideband extending for 100 nm that contains several clear features. We demonstrate that the ZPL position can be used to reliably identify the silicon isotope present in a single ${\rm Si}{{{\rm V}}^{-}}$ centre. This is of interest for quantum information applications since only the ^29 Si isotope has nuclear spin. In addition, we show that the sharp 64 meV phonon peak is due to a local vibrational mode of the silicon atom. The presence of a local mode suggests a plausible origin of the measured isotopic shift of the ZPL. |
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| ISSN: | 1367-2630 |