Low-temperature optical characterization of a near-infrared single-photon emitter in nanodiamonds
P Siyushev, V Jacques, I Aharonovich, F Kaiser, T Mueller, L Lombez, M Atatuere, S Castelletto, S Prawer, F Jelezko, J Wrachtrup
NEW JOURNAL OF PHYSICS | IOP PUBLISHING LTD | Published : 2009
In 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 zerophonon 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. ..View full abstract
Awarded by European Union
Awarded by European Research Council
We acknowledge financial support by BMBF (projects KEPHOSI and EPHQUAM), the European Union (QAP, EQUIND (project no. IST-034368) and NEDQIT), the Landesstiftung Baden-Wurttemberg, the European Research Council (FP7/2007-2013)/ERC Grant agreement no. 209636, the Australian Research Council and The International Science Linkages Program of the Australian Department of Innovation, Industry, Science and Research. VJ is supported by the Humboldt Foundation.