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Resolution enhancement of ghost imaging in atom vapor

机译:原子蒸气中鬼映像的分辨率提高

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摘要

Ghost imaging is an imaging technique in which the image of an object is revealed only in the correlation measurement between two beams of light, whereas the individual measurements contain no imaging information. Normally, the resolution of the image, which even exceeds the Rayleigh limit, is shown to be related to the transverse coherent length (l(c)) of the speckle pattern. In this Letter, we demonstrate experimentally that the speckle size can be compressed by a coherent population trapping (CPT) process in atom vapor, and the resolution of GI can be greatly enhanced by the CPT process. The technique we exploit is quite efficient and robust, and it may be useful in the field of quantum and classical two-photon imaging, all-optical image processing, and quantum communication. (C) 2016 Optical Society of America.
机译:Ghost成像是一种成像技术,其中仅在两个光束之间的相关测量中揭示了对象的图像,而各个测量不包含成像信息。 通常,甚至超过瑞利极限的图像的分辨率被示出与散斑图案的横向相干长度(L(c))有关。 在这封信中,我们实际证明了斑点尺寸可以通过原子蒸气中的相干群体捕获(CPT)过程来压缩,并且通过CPT过程可以大大提高GI的分辨率。 我们利用的技术是非常有效和稳健的,并且在量子和经典双光子成像,全光图像处理和量子通信领域可能是有用的。 (c)2016年美国光学学会。

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  • 来源
    《Optics Letters》 |2016年第22期|共4页
  • 作者单位

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc Peoples R China;

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc Peoples R China;

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc Peoples R China;

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc Peoples R China;

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc Peoples R China;

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc Peoples R China;

    Xi An Jiao Tong Univ Key Lab Quantum Informat &

    Quantum Optoelect Devi Xian 710049 Shaanxi Provinc 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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