Results 251 to 260 of about 1,741,957 (288)

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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Twisting partially coherent light

Optics Letters, 2018
Twisted Gaussian Schell-model beams were introduced 25 years ago as a celebrated example of a "genuinely two-dimensional" partially coherent wavefield. Today, a definite answer about the effect that a twist phase should produce on an arbitrary cross-spectral density has not yet been reached. In the present Letter, the necessary and sufficient condition
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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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Partial Coherence and Entanglement

Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, 2004
The two-photon wave function that characterizes light in a two-photon entangled state obeys equations similar to the Wolf equations describing the mutual coherence function. A duality between coherence and entanglement has been established, and a van Cittert-Zernike theorem is applicable.
Bahaa E. A. Saleh, Malvin C. Teich, Alexander V. Sergienko   +2 more
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Partially coherent migration

Geophysics, 1993
Abstract Partially coherent migration reduces the spurious details introduced by velocity macro-model imperfections. In a partially coherent migration, instead of summing coherently over the full aperture to achieve maximum lateral resolution, (1) a coherent stack is performed over a limited window width, and then (2) the collection ...
Delman Lee, Geoffrey M. Jackson, Iain M. Mason   +2 more
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