Novel Ghost Imaging Method for a Pure Phase Object

Zhang, Yingtao; He, Chenjuan; Li, Hongguo; Wang, Kaige

doi:10.1088/0256-307x/25/7/041

Cited by 7 publications

(2 citation statements)

References 15 publications

(6 reference statements)

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“…In the broadband limit, S(q) can be regarded as a constant S(0). Hence we have the total intensity of the thermal light S 0 = S(q)dq ≈ S(0)q 0 , where the spectral bandwidth of the source [43] is given by the parameter q 0 , which depends on the wavelength of the thermal-light source, the diameter of the light beam, and the distance between the imaged object and the light source. Obviously, the case of q 0 = 0 is meaningless since the ghost image cannot be generated in this case.…”

Section: Many-ghost Imaging Schemementioning

confidence: 99%

Theoretical scheme of thermal-light many-ghost imaging byNth-order intensity correlation

Liu

Kuang

2011

Phys. Rev. A

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In this paper, we propose a theoretical scheme of many-ghost imaging in terms of N th-order correlated thermal light. We obtain the Gaussian thin lens equations in the many-ghost imaging protocol. We show that it is possible to produce N − 1 ghost images of an object at different places in a nonlocal fashion by means of a higher order correlated imaging process with an N th-order correlated thermal source and correlation measurements. We investigate the visibility of the ghost images in the scheme and obtain the upper bounds of the visibility for the N th-order correlated thermal-light ghost imaging. It is found that the visibility of the ghost images can be dramatically enhanced when the order of correlation becomes larger. It is pointed out that the many-ghost imaging phenomenon is an observable physical effect induced by higher order coherence or higher order correlations of optical fields.

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Section: Many-ghost Imaging Schemementioning

confidence: 99%

Theoretical scheme of thermal-light many-ghost imaging byNth-order intensity correlation

Liu

Kuang

2011

Phys. Rev. A

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“…17 Zhang et al theoretically proposed a scheme for reconstructing phase object with ghost imaging, in which the spatially incoherent beam is mixed with a coherent beam of the same frequency. 18 Shirai et al described an optical setup for performing spatial Fourier filtering in ghost imaging with classical incoherent light and showed that a pure phase object could be imaged with this arrangement. 19 In these studies, however, only a diffraction pattern of the phase object was observed through photon coincidence or intensity correlation measurement.…”

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confidence: 99%

Lensless ghost imaging of a phase object with pseudo-thermal light

Zhang

Tang

et al. 2014

Applied Physics Letters

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We report an experimental realization of lensless ghost imaging for a phase-only object with pseudo-thermal light, which was proposed by W. Gong and S. Han [Phys. Rev. A 82, 023828 (2010)]. In contrast with conventional ghost imaging, the scheme involves the interference of two correlated fields and the phase information of the object can be retrieved. This imaging technique completes the nonlocally lensless spatial reconstruction of both amplitude and phase distributions in ghost imaging with thermal light.

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Ghost Imaging Using Orbital Angular Momentum

Zhao¹,

Ding²,

Xiang³

et al. 2011

Chinese Phys. Lett.

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We present a novel encoding scheme in a ghost-imaging system using orbital angular momentum. In the signal arm, object spatial information is encoded as a phase matrix. For an 𝑁 -grey-scale object, different phase matrices, varying from 0 to 𝜋 with increment 𝜋/𝑁 , are used for different greyscales, and then they are modulated to a signal beam by a spatial light modulator. According to the conservation of the orbital angular momentum in the ghost imaging system, these changes will give different coincidence rates in measurement, and hence the object information can be extracted in the idler arm. By simulations and experiments, the results show that our scheme can improve the resolution of the image effectively. Compared with another encoding method using orbital angular momentum, our scheme has a better performance for both characters and the image object.

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Novel Ghost Imaging Method for a Pure Phase Object

Cited by 7 publications

References 15 publications

Theoretical scheme of thermal-light many-ghost imaging byNth-order intensity correlation

Theoretical scheme of thermal-light many-ghost imaging byNth-order intensity correlation

Lensless ghost imaging of a phase object with pseudo-thermal light

Ghost Imaging Using Orbital Angular Momentum

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