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Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 47: SYPC 3: From Atoms to Photonic Circuits 3

A 47.4: Vortrag

Freitag, 16. März 2012, 11:15–11:30, V47.02

The inhomogeneous broadening of the zero phonon line of single nitrogen-vacancy centers in nano-diamonds — •Nikola Sadzak, Janik Wolters, and Oliver Benson — Humboldt Universität zu Berlin, Nano-optics, Newtonstraße 15, D-12489 Berlin, Germany

Color centers in diamond have proven to be a promising resource for quantum technology applications. In particular, the negatively charged nitrogen-vacancy defect (NV) center in bulk diamond is attractive as a source of indistinguishable single photons, as it provides a narrow zero phonon line (ZPL) at the optical 3A3E transition at 638 nm. However, for integrated solid state devices, nano-diamonds with single NV centers are preferable as they can be manipulated and integrated in different photonic structures [1, 2]. Here, a major problem is the inhomogeneous broadening of the ZPL due to spectral diffusion. Performing interferometric and photon-correlation measurements we determine the time-scale of the spectral diffusion and gain further knowledge about the underlying processes.
[1] J. Wolters et al., Enhancement of the zero phonon line emission from a single nitrogen vacancy center in a nanodiamond via coupling to a photonic crystal cavity, Appl. Phys. Lett. 97, 141108 (2010)

[2] A. Schell et al., A scanning probe-based pick-and-place procedure for assembly of integrated quantum optical hybrid devices, Rev. Sci. Instrum. 82, 073709 (2011)

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