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JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
卷 40, 期 3, 页码 411-416出版社
Optica Publishing Group
DOI: 10.1364/JOSAA.474724
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This paper studies the coherence of optical fields in terms of space, time, and polarization. The coherence theory is formulated for transverse spatial and angular coherence. In addition, a theory of coherence is formulated for the radial degree of freedom, including concepts of coherence radial width, radial quasi-homogeneity, and radial stationarity. The paper also proposes an interferometric scheme for measuring radial coherence.
Coherence quantifies the statistical fluctuations in an optical field and has been extensively studied in the space, time, and polarization degrees of freedom. In the context of space, coherence theory has been formulated between two transverse positions as well as between two azimuthal positions, referred to as transverse spatial coherence and angular coherence, respectively. In this paper, we formulate the theory of coherence for optical fields in the radial degree of freedom and discuss the associated concepts of coherence radial width, radial quasi-homogeneity, and radial stationarity with some physically realizable examples of radially partially coherent fields. Furthermore, we propose an interferometric scheme for measuring radial coherence.(c) 2023 Optica Publishing Group
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