Use of Optical Correlation Techniques for Characterizing Scattering Objects and Media

by Angelsky, Oleg V.; Hanson, Steen G.; Maksimyak, Peter P.

• ISBN13: 9780819434906
• ISBN10: 0819434906
• Format: Paperback
• Copyright: 1999-10-01
• Publisher: Society of Photo Optical

Summary

This monograph examines the possibilities for diagnostics of light-scattering objects and media by utilizing the properties of coherent optical radiation. Special emphasis is placed on diagnostics of rough surfaces. Ideas formulated in classical work on statistical radiophysics and optics have been adapted to diagnostic applications. The text includes unique techniques and unconventional methods aimed at obtaining the maximum information available.

Table of Contents

Acknowledgments
Foreword
Introduction	p. 1
Random Non-Uniform Media and Fields	p. 7
Determinate Objects and Random Non-uniform Media	p. 7
Random fields	p. 7
Continuous random non-uniform media	p. 12
Characterization of rough surfaces	p. 17
Dispersive media	p. 21
Propagation of Random Waves in an Unbounded Uniform Medium	p. 22
Transmission of a Plane Wave Through a Random Phase Screen	p. 24
Scattering of Optical Radiation by Dispersive Media	p. 30
Conventional light scattering	p. 31
Rayleigh (point) scatterer	p. 31
Rayleigh-Gans-Debye (RGD) scatterer	p. 32
Mie scatterer	p. 33
Dilute suspension of identical RGD particles	p. 33
The effects of polydispersity	p. 34
Dynamic light scattering	p. 34
Dilute suspension of identical spheres	p. 35
Polydispersity	p. 36
References	p. 37
Rough Surfaces Using Light-Scattering Methods	p. 40
Scattering by a Rough Surface	p. 41
The Kirchhoff approximation (scalar theory)	p. 43
Small perturbation method	p. 46
Scalar theory	p. 46
Vector theory	p. 47
Determining Roughness from Scattering Measurements	p. 48
Total Integrated Scattering	p. 49
Angle-resolved scattering	p. 51
Limits of applicability of light-scattering methods (ARS, TIS) for measuring surface roughness	p. 55
Bidirectional reflectance distribution function	p. 65
Heterodyne techniques for surface roughness diagnostics	p. 66
References	p. 68
Structure Diagnostics of Phase Objects with Small Phase Variance	p. 72
Infinitely Extended Screen Approximation	p. 73
Correlation Methods for Structure Diagnostics of RPO	p. 75
Measurement of the roughness element height distribution function of slightly rough surfaces	p. 85
Studies of Optical Crystals with Refractive Index Inhomogeneities	p. 89
Diagnostics of Slightly Rough Surfaces	p. 93
Low-reflectance surfaces	p. 93
Measurement of arbitrarily shaped surfaces	p. 96
Surfaces with roughness scales comparable to	p. 98
Roughness measurements on plane-parallel plates	p. 100
Optical correlation studies of turbulence in a liquid	p. 102
References	p. 107
Stochastic Approach to Diagnostics of Scattering Objects	p. 111
Stochastic Characteristics of Objects and Fields	p. 113
Diffraction on Simple 1D Phase Structures	p. 115
Fractal Classification	p. 118
The Possibility for Remote Diagnostics of Koch Fractals	p. 121
Angle-averaged intensity	p. 122
Band-averaged intensity	p. 123
The applicability of autocorrelation for measuring a field's dimension	p. 128
Error sources connected with optical measurement of the fractal dimension	p. 135
Diagnostics of Random Phase Inhomogeneous Objects	p. 136
Diagnostics of slightly rough surfaces	p. 137
Diagnostics of large-scale roughness	p. 142
References	p. 150
Structure and Dynamical Diagnostics of Disperse Media	p. 155
Optical Correlation Methods for Sizing and Measuring Concentration of Light-Scattering Particles	p. 155
Optical correlation systems for Reducing diagnostic Response Time in Disperse Media	p. 164
Transformation of the Longitudinal Coherence Function of a Field Propagating in a Light-Scattering Medium	p. 169
Holographic Methods for Dynamic and Structure Diagnostics of Light-Scattering Particles	p. 177
References	p. 185
Index	p. 189
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