P Siyushev et al 2009 New J. Phys. 11 113029 doi:10.1088/1367-2630/11/11/113029
Low-temperature optical characterization of a near-infrared single-photon emitter in nanodiamonds
P Siyushev1, V Jacques1,4, I Aharonovich2, F Kaiser1, T Müller3, L Lombez3, M Atatüre3, S Castelletto2, S Prawer2, F Jelezko1 and J Wrachtrup1
Show affiliationsIn this paper, we study the optical properties of single defects emitting in the near infrared (NIR) in nanodiamonds at liquid helium temperature. The nanodiamonds are synthesized using a microwave chemical vapor deposition method followed by nickel implantation and annealing. We show that single defects exhibit several striking features at cryogenic temperature: the photoluminescence is strongly concentrated into a sharp zero-phonon line (ZPL) in the NIR, the radiative lifetime is in the nanosecond range and the emission is linearly polarized. The spectral stability of the defects is then investigated. An optical resonance linewidth of 4 GHz is measured using resonant excitation on the ZPL. Although Fourier-transform-limited emission is not achieved, our results show that it might be possible to use consecutive photons emitted in the NIR by single defects in diamond nanocrystals to perform two photon interference experiments, which are at the heart of linear quantum computing protocols.
- PACS
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78.67.-n Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
81.15.Gh Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, etc.)
81.07.-b Nanoscale materials and structures: fabrication and characterization
- Subjects
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Condensed matter: electrical, magnetic and optical
Surfaces, interfaces and thin films
- Dates
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Issue 11 (November 2009)
Received 15 September 2009
Published 17 November 2009
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Low-temperature optical characterization of a near-infrared single-photon emitter in nanodiamonds
P Siyushev et al 2009 New J. Phys. 11 113029
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