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We have investigated the superconductivity discovered in boron (B)-doped diamonds by means of 11B-NMR on heteroepitaxially grown (111) and (100) films. 11B-NMR spectra for all of the films are identified to arise from the substitutional…

Controlling the spatial arrangement of optically active elements is crucial for the advancement of engineered photonic systems. Color centers in nanodiamond offer unique advantages for quantum sensing and information processing; however,…

Diamond nanoparticles (nanodiamonds) have been recently proposed as new labels for cellular imaging. For small nanodiamonds (size <40 nm) resonant laser scattering and Raman scattering cross-sections are too small to allow single…

Benefitting from the excellent characteristics such as low cytotoxicity, functionalization versatility, and tunable fluorescence, nanodiamonds (NDs) have shown enormous application potentials in the biomedical field. Herein, we proposed,…

光学 · 物理学 2022-03-01 Yaofei Chen , Lu Xiao , Longqun Ni , Lei Chen , Gui-shi Liu , Jinde Yin , Peili Zhao , Yunhan Luo , Zhe Chen

We present the electrical transport characteristics of a batch of nano-crystalline diamond films of varying nitrogen concentrations and explain the conduction mechanism by the disordered quasi-superlattice model applied to semiconductor…

介观与纳米尺度物理 · 物理学 2015-06-05 George Chimowa , Dimitry Churochkin , Somnath Bhattacharyya

Owing to the unique electronic spin properties, the nitrogen-vacancy (NV) centers hosted in diamond have emerged as a powerful quantum sensor for various physical parameters and biological species. In this work, a miniature optical-fiber…

光学 · 物理学 2022-02-28 Yaofei Chen , Qianyu Lin , Hongda Cheng , Yingying Ye , Gui-Shi Liu , Lei Chen , Yunhan Luo , Zhe Chen

The structural and elastic properties of diamond nanocomposites and ultrananocrystalline diamond films (UNCD) are investigated using both empirical potentials and tight binding schemes. We find that both materials are extremely hard, but…

材料科学 · 物理学 2011-11-09 Maria Fyta , G. C. Hadjisavvas , P. C. Kelires

We present a rigorous theoretical model for the optical interaction between a nitrogen-vacancy (NV) centre in diamond and a plasmonic metal nanoparticle (MNP), accompanied by a computationally efficient procedure to solve the evolution. The…

介观与纳米尺度物理 · 物理学 2022-02-11 Harini Hapuarachchi , Francesco Campaioli , Jared H. Cole

A central aim of quantum information processing is the efficient entanglement of multiple stationary quantum memories via photons. Among solid-state systems, the nitrogen-vacancy (NV) centre in diamond has emerged as an excellent optically…

Nanodiamonds containing nitrogen vacancy (NV-) centers show promise for a number of emerging applications including targeted in vivo imaging and generating nuclear spin hyperpolarization for enhanced NMR spectroscopy and imaging. Here, we…

Nitrogen-vacancy centres (NVs) in diamond are attractive for research straddling quantum information science and nanoscale magnetometry and thermometry. While ultrapure bulk diamond NVs sustain the longest spin coherence times among…

介观与纳米尺度物理 · 物理学 2015-06-17 Helena S. Knowles , Dhiren M. Kara , Mete Atature

A key challenge for neuroscience is noninvasive, label-free sensing of action potential (AP) dynamics in whole organisms with single-neuron resolution. Here, we present a new approach to this problem: using nitrogen-vacancy (NV) quantum…

量子物理 · 物理学 2016-12-26 J. F. Barry , M. J. Turner , J. M. Schloss , D. R. Glenn , Y. Song , M. D. Lukin , H. Park , R. L. Walsworth

The electrical conductivity of a material can feature subtle, nontrivial, and spatially-varying signatures with critical insight into the material's underlying physics. Here we demonstrate a conductivity imaging technique based on the…

介观与纳米尺度物理 · 物理学 2018-06-26 Amila Ariyaratne , Dolev Bluvstein , Bryan A. Myers , Ania C. Bleszynski Jayich

The long-lived electronic spin of the nitrogen-vacancy (NV) center in diamond is a promising quantum sensor for detecting nanoscopic magnetic and electric fields in a variety of experimental conditions. Nevertheless, an outstanding…

This work explores the application of a new one-dimensional carbon nanomaterial, the diamond nanothread (DNT), as a reinforcement for nanocomposites. Owing to the existence of Stone-Wales transformation defects, the DNT intrinsically…

材料科学 · 物理学 2016-05-27 Haifei Zhan , Gang Zhan , Vincent BC Tan , Yuan Cheng , John M Bell , Yong-Wei Zhang , Yuantong Gu

We propose an all-optical scheme to prolong the quantum coherence of a negatively charged nitrogen-vacancy (NV) center in diamond. Optical control of the NV spin suppresses energy fluctuations of the $^{3}\text{A}_{2}$ ground states and…

量子物理 · 物理学 2014-08-18 Zhen-Yu Wang , Jian-Ming Cai , Alex Retzker , Martin B. Plenio

Engineering shallow nitrogen-vacancy (NV) centers in diamond holds the key to unlocking new advances in nanoscale quantum sensing. We find that the creation of near-surface NVs through delta doping during diamond growth allows for tunable…

Diamond provides superior optical and mechanical material properties, making it a prime candidate for the realization of integrated optomechanical circuits. Because diamond sub- strates have matured in size, efficient nanostructuring…

There is a growing need for biolabels that can be used in both optical and electron microscopies, are non-cytotoxic, and do not photobleach. Such biolabels could enable targeted nanoscale imaging of sub-cellular structures, and help to…

生物物理 · 物理学 2015-06-23 Mark A. Zurbuchen , Michael P. Lake , Sirus A. Kohan , Belinda Leung , Louis-S. Bouchard

The use of diamond color centers such as the nitrogen-vacancy (NV) center is increasingly enabling quantum sensing and computing applications. Novel concepts like cavity coupling and readout, laser threshold magnetometry and multi-pass…

量子物理 · 物理学 2023-03-15 T. Luo , F. A. Hahl , J. Langer , V. Cimalla , L. Lindner , X. Vidal , M. Haertelt , R. Blinder , S. Onoda , T. Ohshima , J. Jeske