The impact of light polarization on imaging visibility of Nth-order intensity correlation with thermal light

Liu, Hong‐Chao; Guan, Dongshi; Li, Lü; Zhang, Su-Heng; Xiong, Jun

doi:10.1016/j.optcom.2009.10.026

Cited by 22 publications

(18 citation statements)

References 19 publications

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“…(17) in the paper by Liu et al 16 and both Eqs. (23) and (24) lead to the same physical conclusions on the behaviour of the visibility as a function of the degree of polarization, as can be seen in Fig.…”

Section: Case A: Two Object Armsmentioning

confidence: 93%

“…[13][14][15] Some preliminary studies on the influence of the degree of polarization on visibility have been carried out previously. 16,17 Other quality parameters used to assess ghost-imaging systems are the signal-to-noise ratio (SNR) 3,9,[18][19][20] and the contrast-to-noise ratio (CNR). 15,21 The SNR and CNR parameters characterize how well the useful information is discernible compared to the noise in the system.…”

Section: Quality Parametersmentioning

confidence: 99%

“…A given N th-order intensity-correlation function can be divided into a sum of N th-order ICFs of the different intensity components. Applying the Gaussian moment theorem to these components gives 16 I…”

Section: Intensity Correlationsmentioning

confidence: 99%

“…To study the maximum visibility we consider the case where all the second-order correlation functions (which can be used to describe the N th-order ICF) contain information on the object, that is, at least N − 1 beams interrogate the object. In this case Liu et al 16 have shown that the maximum visibility [Eq. (1)] depends on the degree of polarization according to…”

Section: N -Intensity Visibilitymentioning

confidence: 99%

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Higher-order ghost imaging with partially polarized classical light

et al. 2011

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Visibility, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) are quantities that characterize the quality of the image in ghost (or correlation) imaging. The visibility in quantum and classical ghost imaging with scalar light is known to improve as the order of imaging increases. Recently also electromagnetic ghost imaging has started to attract attention. In this work we analyze the effects of both the order of imaging and the degree of polarization (P ) of the illumination on the image quality parameters. The source is a classical, partially polarized, random electromagnetic field obeying Gaussian statistics. The beam is split into several (N ) parts which are directed either into the object or reference arms and the associated intensity correlations are calculated. When N > 2, more than one reference arm may exist which contributes to the background. We consider two different definitions for the visibility, as well as the SNR and CNR, and examine their attainable limiting values in second-and higher-order ghost imaging as a function of the degree of polarization. Both expressions of the visibility behave in a similar manner; they increase with the order of imaging and the degree of polarization. In second-order imaging the SNR decreases, due to increased noise, as P increases, while the CNR remains essentially constant. We emphasize that the exact numerical values depend on the definitions used and on the number of object arms in the setup.

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Section: Case A: Two Object Armsmentioning

confidence: 93%

Section: Quality Parametersmentioning

confidence: 99%

Section: Intensity Correlationsmentioning

confidence: 99%

Section: N -Intensity Visibilitymentioning

confidence: 99%

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Higher-order ghost imaging with partially polarized classical light

et al. 2011

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“…More recently, the treatment for scalar beams on GI has been extended to the electromagnetic domain by taking the effect of the degree of polarization into account [13][14][15][16]. And it was concluded by saying that the visibility enhances with the increase of the degree of polarization.…”

Section: Introductionmentioning

confidence: 99%