Propagation of Bessel-correlated specular and antispecular beams

Das, Dipanjan; Halder, Atri; Partanen, Henri; Koivurova, Matias; Turunen, Jari

doi:10.1364/oe.452308

Cited by 8 publications

(1 citation statement)

References 22 publications

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“…Very recently, with the developments in coherence measuring devices, WFIs can be implemented in various ways using prisms, corner-cube reflectors, or arrangements of mirrors to fold the incident beams in one or two dimensions [29]. In 2022, Turunen et al introduced WFI variants which are free from prism-edge diffraction effects, and then used them to produce specular Bessel-correlated beams experimentally [30,31].…”

Section: Introductionmentioning

confidence: 99%

Specular transformation of electromagnetic partially coherent beams with a wave-folding interferometer

Tang,

Dong,

Yang

et al. 2024

J. Opt.

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We consider a class of specular or anti-specular vector beams, by illuminating stochastic vector beams into a prism-based wavefront-folding interferometer. Such transform is applied to various genuine model input beams, and then the properties of the resulting fields are discussed. Numerical results show that the specular nature of these vector fields not only creates sharp internal intensities, but also produces novel polarization patterns with oscillations or a central dip on the DOP-profile. Such optical characterizes can be flexibly modulated by the correlation structure of the source. We also suggest that the specular transform could be efficiently employed in developing novel partially coherent vector beams.

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Section: Introductionmentioning

confidence: 99%

Specular transformation of electromagnetic partially coherent beams with a wave-folding interferometer

Tang,

Dong,

Yang

et al. 2024

J. Opt.

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Measurement of spatial coherence of light [Invited]

Turunen¹,

Halder²,

Koivurova³

et al. 2022

J. Opt. Soc. Am. A

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The most frequently used experimental techniques for measuring the spatial coherence properties of classical light fields in the space–frequency and space–time domains are reviewed and compared, with some attention to polarization effects. In addition to Young’s classical two-pinhole experiment and several of its variations, we discuss methods that allow the determination of spatial coherence at higher data acquisition rates and also permit the characterization of lower-intensity light fields. These advantages are offered, in particular, by interferometric schemes that employ only beam splitters and reflective elements, and thereby also facilitate spatial coherence measurements of broadband fields.

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Reduction formula for cross-spectral purity of nonstationary light fields

et al. 2023

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We examine cross-spectral purity of random, nonstationary (pulsed), scalar light fields with arbitrary spectral bandwidth. In particular, we derive a reduction formula in terms of time-integrated coherence functions, which ensures cross-spectral purity of interfering fields having identical normalized spectra. We further introduce fields that are cross-spectrally pure in either a global or local sense. Our analysis is based on an ideal field superposition realizable with all-reflective wavefront-shearing interferometers. Such devices avoid certain problems related to Young’s interferometer, which is the framework customarily employed in assessing cross-spectral purity. We show that any partially coherent beam can be transformed into a locally cross-spectrally pure beam whose cross-spectral density is specular. On the other hand, lack of space–frequency (and space–time) coupling ensures cross-spectral purity in the global sense, i.e., across an entire transverse plane, regardless of the spectral bandwidth or the temporal shape of the pulses.

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Propagation of Bessel-correlated specular and antispecular beams

Cited by 8 publications

References 22 publications

Specular transformation of electromagnetic partially coherent beams with a wave-folding interferometer

Specular transformation of electromagnetic partially coherent beams with a wave-folding interferometer

Measurement of spatial coherence of light [Invited]

Reduction formula for cross-spectral purity of nonstationary light fields

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