Journal ArticleDOI
Scattering of Light from a Rotating Ground Glass
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TLDR
In this paper, the Bose-Einstein properties of a light beam scattered by a rotating ground glass with average-size inhomogeneities of approximately 1 μm were investigated.Abstract:
We report some experimental results concerning the statistical properties of a light beam scattered by a rotating ground glass with average-size inhomogeneities of approximately 1 μm. Photocount statistics measured at different scattering angles and for different angular velocities of the ground glass have confirmed the known result that the scattered-light amplitude is a stochastic gaussian variable. The Bose–Einstein nature of the photocount statistics has been verified with an accuracy of a few parts per thousand. Self-beating measurements on the scattered light of a He–Ne laser in a TEM00 configuration have shown that the power spectrum is a gaussian function of the frequency. The dependence of its half-width on the angular velocity of the ground glass and on the focal length of the lens that focuses the beam on the scattering surface has been measured. The experimental results agree very closely with our theoretical predictions.read more
Citations
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Investigating non-Gaussian scattering processes by using nth-order intensity correlation functions
TL;DR: In this paper, the authors proposed to extend the traditional analysis by introducing intensity correlation functions g(n) of higher order, which allow both to detect non-Gaussian scattering processes and to extract information not available in g(2) alone.
Dynamic Laser Speckles and their Application to Velocity Measurements of the Diffuse Object
TL;DR: In this paper, the statistical properties of dynamic speckles produced in the diffraction and image fields by the diffuse object moving in a plane with constant velocity are examined in detail, and two typical speckle motions of translation and boiling are interpreted for various optical configurations in the Diffraction and Image Fields.
Journal ArticleDOI
Dynamic laser speckles and their application to velocity measurements of the diffuse object
Toshimitsu Asakura,N. Takai +1 more
TL;DR: In this article, the statistical properties of dynamic speckles produced in the diffraction and image fields by the diffuse object moving in a plane with constant velocity are examined in detail, and two typical speckle motions of translation and boiling are interpreted for various optical configurations in the Diffraction and Image Fields.
Journal ArticleDOI
Non-Gaussian fluctuations in electromagnetic radiation scattered by random phase screen. I. Theory
E Jakeman,P N Pusey +1 more
TL;DR: In this article, the statistical, spatial and temporal coherence properties of electromagnetic radiation scattered into the far field by a deep random phase screen are investigated, and it is shown that significant departures from Gaussian behaviour can occur even when the phase correlation length is much smaller than the dimensions of the scattering region.
Journal ArticleDOI
Effects of external perturbations on LiNdP 4 O 12 lasers
TL;DR: In this article, a moving light scattering object was placed across the output beam of a LiNdP 4 O 12 (LNP) laser to suppress the intensity fluctuations due to external perturbations using a YIG Faraday rotation optical isolator.
References
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Journal ArticleDOI
Coherence and Fluctuations in Light Beams
W. Martienssen,Eberhard Spiller +1 more
TL;DR: In this paper, a quasithermal, quasmonochromatic lamp is described which serves as a highly degenerate light source with adjustable coherence time between 10−5 sec and 1 sec.
Journal ArticleDOI
Observation of the Spectrum of Light Scattered from a Pure Fluid Near its Critical Point
N. C. Ford,George B. Benedek +1 more
Journal ArticleDOI
Scattering of Coherent Light by a Statistical Medium
TL;DR: In this article, a coherent light source and photon counting statistics were used to verify the statistical properties of Brownian motion, and the results showed that the field scattering by Brownian particles is accurately described as a stochastic Markov process.