Relationship between degree of polarization and two-time degree of coherence of electromagnetic fields

Joshi, Rajneesh; Pathak, Nishant Kumar; Kanseri, Bhaskar

doi:10.1007/s00340-021-07614-9

Cited by 9 publications

(2 citation statements)

References 22 publications

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“…The correlation between the orthogonal field components will be maximum for equal path difference between both arms. Further, the correlation strength of the orthogonal components varies as a function of path difference as demonstrated in [27]. We made similar measurements to determine the variation for our source and the experimental plot of |B xy | is displayed in the inset figure 4(a).…”

Section: Experimental Schemementioning

confidence: 89%

“…The experimental setup to determine the correlation in Stokes fluctuations and Stokes Scintillations is presented in figure 4. Initially, an unbalanced Mach-Zehnder interferometer (UMZI) is used to synthesize the source with tunable correlation strength (|B xy |) between orthogonal components of the field [27]. In order to achieve this, a randomly polarized He-Ne laser (ThorLabs, 633 nm, 5 mW), having a temporal coherence length of approximately 250 mm, was used for the experiment.…”

Section: Experimental Schemementioning

confidence: 99%

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Determination of Stokes fluctuations and Stokes scintillations for an electromagnetic beam

Singh¹,

Arya²,

Kanseri³

2022

J. Opt.

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In this article, we report the experimental determination of Stokes fluctuations and Stokes scintillations for a generalized electromagnetic Gaussian-Schell model (EMGSM) beam. We have used an experimental scheme comprising three different interferometers which are aimed to tailor the correlation between orthogonal field components, synthesis of the generalized EMGSM beam, and observation of the spatial features of the light beam in the far zone. Stokes fluctuations matrix elements are measured for a partially polarized and unpolarized light beam. The weight value of the matrix elements is found to be dependent on the correlation strength parameter (|B_{xy}|) of the source. Experimental results for Stokes scintillations are also determined which depend drastically on the modulus value of B_{xy}. For asymmetrical coherence widths, variation in the Stokes scintillations is discerned across the beam diameter. The obtained results show a reasonable match with the theoretically expected values. The study reveals the source properties which can find applications in the areas of optical imaging, optical communication, etc.

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Section: Experimental Schemementioning

confidence: 89%

Section: Experimental Schemementioning

confidence: 99%