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Advanced Materials

Diamond in Tellurite Glass: a New Medium for Quantum Information

Matthew R. Henderson, Brant C. Gibson, Heike Ebendorff‐Heidepriem, K. Kuan, Shahraam Afshar V., Julius O. Orwa, Igor Aharonovich, Snjezana Tomljenovic‐Hanic, Andrew D. Greentree, Steven Prawer, Tanya M. Monro

Published Apr 20, 2011• 94 citations
Publisher

Abstract

Fabrication of a hybrid diamond-glass material is reported, by embedding diamond nanocrystals containing nitrogen-vacancy (NV) color centers into tellurite soft glass. This material allows the fabrication of diamond photonic waveguides using well-established soft glass techniques, such as microstructured optical fiber technology (the figure is a confocal image that shows color center fluorescence in a fiber).

DOI
10.1002/adma.201100151

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Hybrid Materials: Diamond in Tellurite Glass: a New Medium for Quantum Information (Adv. Mater. 25/2011)

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Diamond color centers represent one of the most important frontiers for room-temperature solid-state quantum devices. Here we show the incorporation of fluorescent diamond nanoparticles into tellurite glass optical fibers. This system offers a new platform for quantum sensing and robust single photon collection and distribution.

Conference on Lasers and Electro-Optics•Jan 1, 2012•0 citations
Fabrication of a hybrid diamond-glass material is reported, by embedding diamond nanocrystals containing nitrogen-vacancy (NV) color centers into tellurite soft glass. This material allows the fabrication of diamond photonic waveguides using well-established soft glass techniques, such as microstructured optical fiber technology (the figure is a confocal image that shows color center fluorescence in a fiber).
Diamond is emerging as an optical supermaterial, due to its wide transparency bandwidth, excellent thermooptic properties and most notably its stable, large dipole moment, room temperature, single photon emitting colour centres. In this paper we present recent progress in the characterization of non radiative and radiative decay in single impurities and the fabrication of hybrid diamond-tellurite optical structures.. First, we present direct imaging of the emission pattern of individual ion implanted chromium-based single photon emitters in diamond and measure their quantum efficiency. By comparing the decay rates from the single chromium emitters at different depths in the diamond crystal, we measured an average quantum efficiency of 28%. Second, a hybrid approach involving a soft glass tellurite host material has been introduced, allowing nitrogen-vacancy (NV-) diamond emitters to be built into an optical fibre. The potential of integrating Cr-related centres in hybrid optical structures is also discussed.