Optical estimation of statistics of surface roughness from light scattering measurements

Welford, W.T.

doi:10.1007/bf00619527

Cited by 127 publications

(35 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These functions are given, respectively, by the expressions C(r) = exp(-r2/a2), (1) and C(r) = exp(-r/a). (2) With reference to Figures 1 and 2, we can see that, in all four cases, the Gaussian correlation seems to provide a better fit to the experimental data. The estimated power spectra are shown in the lower part of the figures.…”

Section: Surface Preparation and Characterizationmentioning

confidence: 79%

<title>Light scattering from gold-coated ground glass and chemically etched surfaces</title>

Ruiz-Cortés

Mendez

et al. 1991

SPIE Proceedings

View full text Add to dashboard Cite

An experimental study of light scattering from gold-coated ground glass and chemically etched surfaces is presented. A substantial amount of energy was detected in the cross-polarized component of the light scattered by all our samples and, with the chemically etched surfaces, the phenomenon of enhanced backscattering was observed. The surfaces were characterized with a mechanical profilometer but the estimated statistics are inconsistent with the evidence presented by the light scattering experiments. We believe that this is due to a lack of fidelity of the profilometric measurements. A computer simulation of the effects of the non-vanishing stylus tip has also been conducted to get some insight into the causes of this discrepancy.

show abstract

Section: Surface Preparation and Characterizationmentioning

confidence: 79%

<title>Light scattering from gold-coated ground glass and chemically etched surfaces</title>

Ruiz-Cortés

Mendez

et al. 1991

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…There has always been an intrinsic interest in optical methods of measuring roughness, and this has generated a formidable literature: two recent reviews are by Welford (1977) and Vorburger and Teague (1981). Apart from these techniques there is a current need for practical transducers for the adaptive control of machining operations in automatic production processes.…”

Section: Measurementmentioning

confidence: 99%

Surface Topography Measurement and Analysis

Thwaite¹

1982

Aust. J. Phys.

View full text Add to dashboard Cite

Aust. J. Phys., 1982, 35, 777-84 Topography is one of the most important of the physical characteristics of surfaces influencing their significant technical properties. The systematic study of the fine structure of surfaces only became possible when instruments with sufficient magnification to resolve the vertical structures became available. A resume is given of current and prospective quantitative techniques for determining surface topographical properties. The topics of modelling and the interpretation of data which are mainly in the form of time series are discussed.

show abstract

“…Many of the works on inverse scattering have focused on the retrieval of some statistical properties of the surface under study [8,9,10,11,12]. The reconstruction of surface profiles from far-field amplitude data has been considered by Wombel and DeSanto [13,14], Quartel and Sheppard [15,16], and Macías et al [17].…”

Section: Introductionmentioning

confidence: 98%

Surface Profile Reconstruction from Scattered Intensity Data Using Evolutionary Strategies

Macı́as

Olague

Mendez

2002

Lecture Notes in Computer Science

View full text Add to dashboard Cite

Abstract. We present a study of rough surface inverse scattering problems using evolutionary strategies. The input data consists of far-field angle-resolved scattered intensity data, and the objective is to reconstruct the surface profile function that produced the data. To simplify the problem, the random surface is assumed to be one-dimensional and perfectly conducting. The optimum of the fitness function is searched using the evolutionary strategies (µ, λ) and (µ + λ). On the assumption that some knowledge about the statistical properties of the unknown surface profile is given or can be obtained, the search space is restricted to surfaces that belong to that particular class. In our case, as the original surface, the trial surfaces constitute realizations of a stationary zeromean Gaussian random process with a Gaussian correlation function. We find that, for the conditions and parameters employed, the surface profile can be retrieved with high degree of confidence. Some aspects of the convergence and the lack of uniqueness of the solution are also discussed.

show abstract

Optical estimation of statistics of surface roughness from light scattering measurements

Cited by 127 publications

References 46 publications

<title>Light scattering from gold-coated ground glass and chemically etched surfaces</title>

<title>Light scattering from gold-coated ground glass and chemically etched surfaces</title>

Surface Topography Measurement and Analysis

Surface Profile Reconstruction from Scattered Intensity Data Using Evolutionary Strategies

Contact Info

Product

Resources

About