Showing papers by "Evelyn L. Hu published in 2013"
TL;DR: In this article, a bottom-up approach for controllably building diamond nanostructures is presented, where a realization of periodic structures and optical wave-guiding is achieved by growing nanoscale single crystal diamond through a defined pattern.
Abstract: Engineering nanostructures from the bottom up enables the creation of carefully engineered complex structures that are not accessible via top down fabrication techniques, in particular, complex periodic structures for applications in photonics and sensing. In this work, we propose and demonstrate a bottom up approach that can be adopted and utilized to controllably build diamond nanostructures. A realization of periodic structures and optical wave-guiding is achieved by growing nanoscale single crystal diamond through a defined pattern.
41 citations
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TL;DR: In this paper, the authors demonstrate that nanodiamonds fabricated to incorporate silicon-vacancy (Si-V) color centers provide bright, spectrally narrow, and stable cathodoluminescence (CL) in the near-infrared.
Abstract: We demonstrate that nanodiamonds fabricated to incorporate silicon-vacancy (Si-V) color centers provide bright, spectrally narrow, and stable cathodoluminescence (CL) in the near-infrared. Si-V color centers containing nanodiamonds are promising as non-bleaching optical markers for correlated CL and secondary electron microscopy, including applications to nanoscale bioimaging.
4 citations
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TL;DR: In this paper, the effect of fluorine-terminated diamond surface on the charged state of shallow nitrogen vacancy defect centers (NVs) was investigated with CF4 plasma and the surface chemistry was confirmed with x-ray photoemission spectroscopy.
Abstract: We investigated the effect of fluorine-terminated diamond surface on the charged state of shallow nitrogen vacancy defect centers (NVs). Fluorination is achieved with CF4 plasma and the surface chemistry is confirmed with x-ray photoemission spectroscopy. Photoluminescence of these ensemble NVs reveal that fluorine-treated surfaces lead to a higher negatively charged nitrogen vacancy (NV-) population than oxygen-terminated surfaces. Using surface chemistry to control NV charges, in particular increasing the density of NV- centers, is an important step towards improving the optical and spin properties of NVs for quantum information processing and magnetic sensing.
3 citations