Results 241 to 250 of about 4,580,641 (293)

Uncertainty principle for partially coherent light

open access: yesJournal of the Optical Society of America, 1983
Two intensity functions are introduced for partially coherent light: one in a space domain and a second one in a spatial-frequency domain. Moreover, a quantity is defined that can be considered a measure of the overall degree of coherence of the partially coherent light.
Bastiaans, M.J., Bastiaans, MJ Martin
openaire   +4 more sources

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   +1 more
openaire   +1 more source

Enhanced backscattering of partially coherent light

Optics Letters, 1996
The backscattering enhancement of light from random media is analyzed for situations in which the scatterers are illuminated with spatially partially coherent light. The effect of coherence is incorporated into the existing theories by use of the angular correlation description for the illuminating light field. When the area of illumination is infinite,
T, Okamoto, T, Asakura
openaire   +2 more sources

Isotropic bicomponent partially polarized and partially coherent light

Optics Letters, 2014
The degree of coherence of scalar light remains constant when the fields are modified by the same random linear transformation, which can be represented by the multiplication by a random complex number. This shows that the coherence properties of scalar light at order two are not modified with the increase of disorder of each field that results from ...
Réfrégier, Philippe   +2 more
openaire   +3 more sources

Focusing of partially coherent light

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
We investigate the focusing of partially coherent light and show that for certain types of correlation functions the intensity distribution can exhibit a local minimum at the geometrical focus.
T. van Dijk, T.D. Visser
openaire   +1 more source

Self-imaging of partially coherent light in graded-index media

open access: yesOptics Letters, 2015
We demonstrate that partially coherent light beams of arbitrary intensity and spectral degree of coherence profiles can self-image in linear graded-index media.
Ponomarenko Sergey
exaly   +1 more source

Partially Coherent Light

1978
When discussing the theory of interference and diffraction of waves, one usually assumes that the fields remain perfectly sinusoidal for all values of time. This is obviously an idealized situation and we know that the radiation from an ordinary light source consists of finite* size wave trains, a typical time variation of which is shown in Fig.
Ajoy K. Ghatak, K. Thyagarajan
openaire   +1 more source

Focusing with Partially Coherent Light

Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018
In following paper it is analyzed the synthesis of focusing regions using as illumination system partially coherent light sources. The description is performed by means of the temporal average for the optical field.
A. Garcia-Guzman   +4 more
openaire   +1 more source

Properties of Partially Coherent Light*

Journal of the Optical Society of America, 1966
The traditional classical theory of coherence is discussed with particular emphasis on the distinction between narrowband coherent and incoherent sources. The significance of this difference is discussed in terms of conventional classical optics experiments.
J. G. Meadors, W. S. C. Chang
openaire   +1 more source

Holography in partially coherent light

Optics Communications, 1980
Abstract A Michelson interferometer has been used to obtain good holographic carrierfringes of the order of 200 to 300 fringes/ mm over an area of 1 cm × 1.5 cm with a Hg-are source and extended aperture with and without filter. The fringes have been used to record holograms.
S.C. Som, Claude Delisle, Mario Drouin
openaire   +1 more source

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