Experimental technique for measuring radial coherence
Coherence refers to correlations between field vibrations at two separate points in degrees of freedom such as space, time, and polarization. In the context of space, coherence theory has been formulated between two transverse positions which can be described either in the Cartesian coordinates or in the cylindrical coordinates. When expressed in cylindrical coordinates, spatial coherence is described in terms of azimuthal and radial coordinates. The description of spatial coherence in radial degree of freedom has been formulated only recently in JOSA A40, 411 (2023)10.1364/JOSAA.474724. In the present article, we demonstrate an efficient experimental technique for measuring radial coherence, and we report measurement of radial coherence of two different types of radially partially coherent optical fields.
Authors
- Anand K. Jha (ORCID: https://orcid.org/0000-0002-5186-6264)
- Miguel A. Alonso (ORCID: https://orcid.org/0000-0001-7037-5383)
- Bruno Piccirillo (ORCID: https://orcid.org/0000-0002-1517-6899)
- Abhinandan Bhattacharjee (ORCID: https://orcid.org/0000-0002-0646-2404)
- Suman Karan (ORCID: https://orcid.org/0000-0003-0301-0020)
- Radhika Prasad (ORCID: https://orcid.org/0000-0002-9748-5264)
- Nilakshi Senapati (ORCID: https://orcid.org/0009-0008-8407-2883)
Institutions
- Paderborn University (DE)
- Aix-Marseille Université (FR)
- University of Rochester (US)
- University of Naples Federico II (IT)
Publication Details
- Journal
- Optics Express
- Published
- 2025-02-11
- DOI
- https://doi.org/10.1364/oe.544628
- Citations
- 1
- Primary Topic
- Orbital Angular Momentum in Optics
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- Department of Science and Technology, Ministry of Science and Technology, India
- Ministero dell'Università e della Ricerca
- Science and Engineering Research Board