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Journal ArticleDOI

Measurement of Spatial Coherence Using Speckle Patterns

Toshimitsu Asakura, +2 more
- 01 Apr 1972 - 
- Vol. 19, Iss: 4, pp 273-290
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TLDR
In this paper, a method for measuring the spatial coherence of light by means of speckle patterns produced by using ground glass as a random inhomogeneous medium is described, and its verification is performed experimentally by using a laser and a mercury lamp as light sources.
Abstract
A method is described for measuring the spatial coherence of light by means of speckle patterns produced by using ground glass as a random inhomogeneous medium. The theory of the method is developed and its verification is performed experimentally by using a laser and a mercury lamp as light sources. Characteristics of the present method for exploring the spatial coherence of light fields are discussed.

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Citations
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Book ChapterDOI

I The Statistics of Speckle Patterns

TL;DR: The statistical properties of a speckle pattern depend, in general, on both the coherence of the incident light and the statistics of the scattering surface or medium as discussed by the authors, and it was found that the value of the r.m.s. height variation of a scattering surface strongly influenced the statistical properties, even for surfaces with a Gaussian distribution of surface heights.
Journal ArticleDOI

Effect of surface roughness on the statistical distribution of image speckle intensity

TL;DR: In this article, an experimental investigation is made of the effect of surface roughness on the statistical distribution of image speckle intensity, which is formed by spatially coherent light at the image plane of an object having some roughness and its statistical properties are investigated.
Journal ArticleDOI

Space and wavelength dependence of speckle intensity

TL;DR: In this article, a unified analysis for the spatial and spectral sensitivity of speckle in a space-invariant linear system is presented, where a diffuse object, illuminated by a collimated, monochromatic beam, is imaged by a system whose amplitude impulse response isz(x, η), wherex and η are space and normalized (temporal) frequency coordinates, respectively.
Journal Article

The concept of degree of coherence and its application to optical problems

F. Zernike
TL;DR: In this article, the maximum visibility of the interferences obtainable from two points in a wave field is defined as their degree of coherence γ, which depends only on the aperture of the illuminating cone.
Book ChapterDOI

Stellar Speckle Interferometry

J. C. Dainty
TL;DR: Stellar speckle interferometry is a technique for obtaining diffraction-limited resolution of stellar objects despite the presence of the turbulent atmosphere which limits the resolution of conventional long-exposure pictures to approximately one arc second as mentioned in this paper.
References
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Book

Principles of Optics

Max Born, +1 more
TL;DR: In this paper, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.

Principles of Optics

Max Born, +1 more
TL;DR: In this article, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
Journal ArticleDOI

The concept of degree of coherence and its application to optical problems

TL;DR: In this article, the maximum visibility of the interferences obtainable from two points in a wave field is defined as their degree of coherence γ, which depends only on the aperture of the illuminating cone.
Journal ArticleDOI

Autocorrelation Function and Power Spectral Density of Laser-Produced Speckle Patterns

TL;DR: In this paper, the autocorrelation function of the speckle pattern so recorded is shown to be proportional to the diffraction pattern corresponding to the illumination function plus a constant.
Journal ArticleDOI

Two-Beam Interference with Partially Coherent Light

TL;DR: In this paper, a new proof of the general interference law for partially coherent fields is obtained and is illustrated by simple and direct experiments, which show the changes in the visibility of the fringes as the degree of coherence varied and the results are compared with the predictions of the theory.
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