Results 241 to 250 of about 1,330,765 (292)

Coherence requirements for partially coherent optical processing

Applied Optics, 1982
The mutual intensity function for a partially coherent light is used to develop an expression for the output intensity distribution for a broadband optical information processor. The coherence requirement for smeared image deblurring and image subtraction is then determined using the intensity distribution. We also quantitatively show the dependence of
S L, Zhuang, F T, Yu
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Partially coherent sources with circular coherence: comment

Optics Letters, 2017
In [Opt. Lett.42, 1512 (2017)OPLEDP0146-959210.1364/OL.42.001512], the authors present a new class of non-uniformly correlated sources with circular coherence. They also describe a basic experimental setup for synthesizing this class of sources, which uses the Van Cittert-Zernike theorem. Here, we present an alternative way to analyze these sources and
Milo W, Hyde, Santasri R, Bose-Pillai
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Coherent detection of partially coherent sources

Optics Letters, 1980
The mean square of the beating component of the photodetector output current of a coherent optical or infrared receiver, illuminated by partially coherent quasi-monochromatic radiation, is expressed in terms of the mutual intensity functions of the signal and local reference fields on the detector’s active surface.
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Partially coherent nonparaxial beams

Optics Letters, 2004
The concept of a partially coherent nonparaxial beam is proposed. A closed-form expression for the propagation of nonparaxial Gaussian Schell model (GSM) beams in free space is derived and applied to study the propagation properties of nonparaxial GSM beams.
Kailiang, Duan, Baida, Lü
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Partially coherent conical beams

Optics Letters, 2000
We introduce a new class of partially coherent beams that can propagate over large distances without changing their transverse profiles and their coherence properties. Such beams are generated by an incoherent superposition of identical fully coherent beams of arbitrary form, whose axes lie on a cone.
A V, Shchegrov, E, Wolf
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Generalized Partial Directed Coherence

2007 15th International Conference on Digital Signal Processing, 2007
This paper re-examines the definition of partial directed coherence (PDC) which was recently introduced as a linear frequency-domain quantifier of the multivariate relationship between simultaneously observed time series for application in functional connectivity inference in neuroscience.
Luiz A. Baccalá, Koichi Sameshima, Daniel Y. Takahashi   +2 more
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