[PDF][PDF] Measurement of optical coherence structures of random optical fields using generalized Arago spot experiment

X Liu, Q Chen, J Zeng, Y Cai, C Liang - Opto-Electronic Science, 2023 - researching.cn
The optical coherence structures of random optical fields can determine beam propagation
behavior, light–matter interactions, etc. Their performance makes a light beam robust …

Measuring complex degree of coherence of random light fields with generalized Hanbury Brown–Twiss experiment

Z Huang, Y Chen, F Wang, SA Ponomarenko, Y Cai - Physical Review Applied, 2020 - APS
We advance a protocol to measure the complex spatial degree of coherence of a partially
coherent light field obeying Gaussian statistics through a generalized Hanbury Brown–Twiss …

Modified Mach–Zehnder interferometer for spatial coherence measurement

FJ Torcal-Milla, J Lobera, EM Roche, AM Lopez… - Optics Letters, 2023 - opg.optica.org
Spatial coherence of light sources is usually obtained by using the classical Young's
interferometer. Although the original experiment was improved upon in successive works …

Scanning wavefront folding interferometers

M Koivurova, H Partanen, J Lahyani, N Cariou… - Optics …, 2019 - opg.optica.org
We present modified scanning-type wavefront folding interferometers (WFIs), which allow
spatial coherence measurements of non-uniformly correlated fields, where the degree of …

Measurement of the full complex degree of coherence using Fresnel diffraction from a phase discontinuity

H Hooshmand-Ziafi, M Dashtdar, K Hassani - Optics Letters, 2020 - opg.optica.org
A field-portable, single-shot and very simple method is presented for measuring the full
complex degree of coherence (CDC) of a quasi-monochromatic Schell-model field using the …

Measurement of two-photon position–momentum Einstein–Podolsky–Rosen correlations through single-photon intensity measurements

A Bhattacharjee, N Meher, AK Jha - New Journal of Physics, 2022 - iopscience.iop.org
The measurement of the position–momentum Einstein–Podolsky–Rosen (EPR) correlations
of a two-photon state is important for many quantum information applications ranging from …

Measurement of spatial coherence of partially coherent light by spatial averaging of speckle pattern

X Chao, F Yang, G Sun, J Ding - Optics & Laser Technology, 2024 - Elsevier
We employ spatial averaging to directly evaluate the modulus of two-dimensional spatial
coherence of partially coherent field using speckle patterns. This approach offers several …

Generation of a Gaussian Schell-model field as a mixture of its coherent modes

A Bhattacharjee, R Sahu, AK Jha - Journal of Optics, 2019 - iopscience.iop.org
Gaussian Schell-model (GSM) fields are examples of spatially partially coherent fields which
in recent years have found several unique applications. The existing techniques for …

Eight-shot measurement of spatially non-stationary complex coherence function

P Mohta, A Bhattacharjee, AK Jha - arXiv preprint arXiv:2403.00090, 2024 - arxiv.org
Spatial coherence plays an important role in several real-world applications ranging from
imaging to communication. As a result, its accurate characterization and measurement are …

Direct determination of 2D momentum space from 2D spatial coherence of light using a modified Michelson interferometer

SVU Vedhanth, S Datta - Review of Scientific Instruments, 2023 - pubs.aip.org
Momentum space distribution of photons coming out of any light emitting material/device
provides critical information about their underlying physical origin. Conventional methods of …