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Manipulation of the spontaneous parametric down-conversion process in space and frequency domains via wavefront shaping

机译:通过波前塑形操纵空间和频域中的自发参数下转换过程

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摘要

The spontaneous parametric down-conversion (SPDC) source of entangled-photon pairs is important for applications in the quantum information process and quantum communication, but suffers from scattering by sample defect and air impurity. Here, we proposed an alternative scheme to manipulate the scattered SPDC process, where only a spatial light modulator was used to control the incident wavefront. The scheme was experimentally tested and also applied on the manipulation of photon pairs through the SPDC process with spectral control. This work proved the feasibility of manipulating nonlinear signals at quantum level with feedback-based wavefront shaping and also indicated applications in long-distance quantum key distribution, quantum communications, and quantum imaging, especially in complex environments. (C) 2018 Optical Society of America
机译:缠绕的光子对的自发参数下转换(SPDC)源对量子信息过程和量子通信中的应用非常重要,但是遭受样品缺陷和空气杂质的散射。 这里,我们提出了一种替代方案来操纵散射的SPDC过程,其中仅使用空间光调制器来控制入射波前。 该方案是通过通过SPDC工艺进行实验测试的,并在光子对操纵光子对的情况下,具有光谱控制。 这项工作证明了用基于反馈的波前塑造的量子级操纵非线性信号的可行性,并且还指示了长距离量子密钥分布,量子通信和量子成像的应用,尤其是复杂环境。 (c)2018年光学学会

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  • 来源
    《Optics Letters》 |2018年第16期|共4页
  • 作者单位

    Shanghai Jiao Tong Univ Sch Phys &

    Astron State Key Lab Adv Opt Commun Syst &

    Networks Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Sch Phys &

    Astron State Key Lab Adv Opt Commun Syst &

    Networks Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Sch Phys &

    Astron State Key Lab Adv Opt Commun Syst &

    Networks Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Sch Phys &

    Astron State Key Lab Adv Opt Commun Syst &

    Networks Shanghai 200240 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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