Results 251 to 260 of about 1,330,765 (292)

Symmetries in Coherent and Partially Coherent Fields

Optica Acta: International Journal of Optics, 1983
The operator form of the solution for the wave equation is employed to indicate the symmetry properties of the diffracted field under coherent and partially coherent illumination. Such symmetries are of interest in holography, phase conjugation, and for automatic focusing.
A.W. Lohmann, J. Ojeda-Castaneda, N. Streibl   +2 more
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Non-diffracting partially coherent waves with binomial coherence

Journal of the Optical Society of America A, 2022
Comprehensive analysis of non-diffracting optical waves with two-point binomial coherence function (BCF) is presented. This coherence function consists of two terms, each depending on either separation of points or the central point. We establish the necessary and sufficient conditions for nonnegative definiteness of the BCFs.
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Coherent diffractive imaging and partial coherence

Physical Review B, 2007
We formulate coherent diffractive imaging in the framework of partially spatially coherent diffraction. We find that the reconstruction can be critically dependent on the degree of coherence in the illuminating field and that even a small departure from full coherence may invalidate the conventional assumption that a mapping exists between an exit ...
Williams, Garth J., Quiney, Harry M., Peele, Andrew G., Nugent, Keith A.   +3 more
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On the Propagation of Coherent and Partially Coherent Light

Optica Acta: International Journal of Optics, 1979
A comparison is made between the propagation of coherent light from a given field of a given geometry with the propagation of light from an incoherent field with the same geometry. This comparison illustrates the important relationship between the van Cittert-Zernike theorem and the normal diffraction calculation and how the intensity and degree of ...
Brian J. Thompson, Chandrasekhar Roychoudhuri   +1 more
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Azimuthal polarization and partial coherence

Journal of the Optical Society of America A, 2003
Partially coherent fields with the electric field parallel to the azimuthal coordinate are analyzed by use of the exact angular spectrum representation. The known results for fully coherent fields are used to find the permitted forms of azimuthally polarized, partially coherent fields.
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The Structure of Partially Coherent Fields

2010
The general framework of optical coherence theory is now well established and has been described in numerous publications. This chapter provides an overview of recent advances, both theoretical and experimental, that have been made in a number of areas of classical optical coherence.
Gbur, G., Visser, T.D.
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Extracting coherent modes from partially coherent wavefields

Optics Letters, 2009
Blank
Nugent, Keith A., Tran, Chanh Quoc., Quiney, H. M., Flewett, Samuel.   +3 more
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Basic theory of partial coherence

Proceedings of the April 26-28, 1966, Spring joint computer conference on XX - AFIPS '66 (Spring), 1966
The structure for a fundamental treatment of image formation problems already exists in the formalism of modern coherence theory as introduced by Wolf. An adequate introduction to the subject is provided by Born and Wolf, (Chap. 10), and a detailed description of most of the results of the theory to date may be found in Beran and Parrent.
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Self-focusing of a partially coherent beam with circular coherence

Journal of the Optical Society of America A, 2017
In a recent publication [Opt. Lett.42, 1512 (2017)OPLEDP0146-959210.1364/OL.42.001512], a novel class of partially coherent sources with circular coherence was introduced. In this paper, we examine the propagation behavior of the spectral density and the spectral degree of spatial coherence of a beam generated by such a source in free space and in ...
Chaoliang Ding, Matias Koivurova, Jari Turunen, Liuzhan Pan   +3 more
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Coherent-Mode Representation of Partially Coherent and Partially Polarized Optical Fields

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
The coherent-mode representation of partially coherent, partially polarized optical field is defined on the basis of the unified theory of coherence and polarization. An example of the coherent-mode representation of the imaging process is given.
Andrey S. Ostrovsky, Paulo C. Romero-Soría   +1 more
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