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Quantum Frequency Conversion of a Quantum Dot Single-Photon Source on a Nanophotonic Chip. 纳米光子芯片上量子点单光子源的量子频率转换。
Q1 Engineering Pub Date : 2019-01-01 DOI: 10.1364/optica.6.000563
Anshuman Singh, Qing Li, Shunfa Liu, Ying Yu, Xiyuan Lu, Christian Schneider, Sven Höfling, John Lawall, Varun Verma, Richard Mirin, Sae Woo Nam, Jin Liu, Kartik Srinivasan

Single self-assembled InAs/GaAs quantum dots are promising bright sources of indistinguishable photons for quantum information science. However, their distribution in emission wavelength, due to inhomogeneous broadening inherent to their growth, has limited the ability to create multiple identical sources. Quantum frequency conversion can overcome this issue, particularly if implemented using scalable chip-integrated technologies. Here, we report the first demonstration of quantum frequency conversion of a quantum dot single-photon source on a silicon nanophotonic chip. Single photons from a quantum dot in a micropillar cavity are shifted in wavelength with an on-chip conversion efficiency ≈ 12 %, limited by the linewidth of the quantum dot photons. The intensity autocorrelation function g(2)(τ) for the frequency-converted light is antibunched with g(2)(0)=0.290±0.030, compared to the before-conversion value g(2)(0)=0.080±0.003. We demonstrate the suitability of our frequency conversion interface as a resource for quantum dot sources by characterizing its effectiveness across a wide span of input wavelengths (840 nm to 980 nm), and its ability to achieve tunable wavelength shifts difficult to obtain by other approaches.

单个自组装砷化镓/砷化镓量子点是量子信息科学领域前景光明的无差别光子源。然而,由于量子点生长过程中固有的不均匀展宽,它们的发射波长分布限制了创建多个相同光源的能力。量子频率转换可以克服这一问题,尤其是在使用可扩展的芯片集成技术的情况下。在此,我们首次在硅纳米光子芯片上演示了量子点单光子源的量子频率转换。来自微柱状腔体中量子点的单光子进行了波长位移,片上转换效率≈ 12%,但受量子点光子线宽的限制。频率转换后光的强度自相关函数 g(2)(τ) 为反束,g(2)(0)=0.290±0.030,而转换前的值为 g(2)(0)=0.080±0.003。我们证明了我们的频率转换接口作为量子点源资源的适用性,它在宽输入波长范围(840 纳米到 980 纳米)内的有效性,以及它实现其他方法难以获得的可调波长偏移的能力。
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引用次数: 0
A nonlinear eigenmode solver for linear viscoelastic structures 线性粘弹性结构的非线性特征模态求解器
Q1 Engineering Pub Date : 2018-12-01 DOI: 10.1007/s00791-018-00302-w
C. Pechstein, S. Reitzinger
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引用次数: 0
Preface 前言
Q1 Engineering Pub Date : 2018-11-09 DOI: 10.1007/s00791-018-00304-8
Thomas Apel, O. Steinbach
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引用次数: 0
Multilevel techniques for compression and reduction of scientific data—the univariate case 压缩和简化科学数据的多层技术——单变量的情况
Q1 Engineering Pub Date : 2018-11-09 DOI: 10.1007/s00791-018-00303-9
M. Ainsworth, O. Tugluk, Ben Whitney, S. Klasky
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引用次数: 65
Multigrid interpretations of the parareal algorithm leading to an overlapping variant and MGRIT 多网格解释的拟面算法导致了一种重叠变体和MGRIT
Q1 Engineering Pub Date : 2018-06-29 DOI: 10.1007/s00791-018-0297-y
M. Gander, Felix Kwok, Hui Zhang
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引用次数: 24
Influence of the phase accuracy of the coarse solver calculation on the convergence of the parareal method iteration for hyperbolic PDEs 粗解算器计算的相位精度对双曲偏微分方程准实数迭代法收敛性的影响
Q1 Engineering Pub Date : 2018-06-27 DOI: 10.1007/s00791-018-0299-9
M. Iizuka, K. Ono
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引用次数: 4
A numerical study of a semi-Lagrangian Parareal method applied to the viscous Burgers equation 应用于粘性Burgers方程的半拉格朗日Parareal方法的数值研究
Q1 Engineering Pub Date : 2018-06-01 DOI: 10.1007/S00791-018-0294-1
A. Schmitt, Martin Schreiber, P. Peixoto, M. Schäfer
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引用次数: 13
Time-parallel simulation of the decay of homogeneous turbulence using Parareal with spatial coarsening 利用空间粗化Parareal对均匀湍流衰减的时间并行模拟
Q1 Engineering Pub Date : 2018-05-30 DOI: 10.1007/s00791-018-0295-0
Thibaut Lunet, J. Bodart, S. Gratton, X. Vasseur
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引用次数: 17
Lossy data compression reduces communication time in hybrid time-parallel integrators 在混合时间并行积分器中,有损数据压缩减少了通信时间
Q1 Engineering Pub Date : 2018-05-29 DOI: 10.1007/s00791-018-0293-2
L. Fischer, S. Götschel, M. Weiser
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引用次数: 6
Virtual reality in advanced medical immersive imaging: a workflow for introducing virtual reality as a supporting tool in medical imaging 高级医学沉浸式成像中的虚拟现实:引入虚拟现实作为医学成像支持工具的工作流程
Q1 Engineering Pub Date : 2018-02-27 DOI: 10.1007/s00791-018-0292-3
Markus M. Knodel, Babett Lemke, M. Lampe, M. Hoffer, C. Gillmann, M. Uder, J. Hillengass, G. Wittum, T. Bäuerle
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引用次数: 8
期刊
Computing and Visualization in Science
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