SURFACE-ROUGHNESS DEPENDENCE OF THE 1ST-ORDER PROBABILITY DENSITY-FUNCTION FOR INTEGRATED SPECKLE

The surface roughness dependence of the first-order probability density function (PDF) of an integrated speckle pattern, produced in the condition of circular detection aperture and gaussian scattering spot, was theoretically investigated. The mutual intensity J(A)(x1, y1; x2, y2) containing two roughness parameters, dispersion of surface height [phi2] and lateral correlation length x(c), was calculated. The exact first-order probability density function was analytically derived and numerically calculated by means of the Karhunen-Loeve expansion and fast Fourier transform (FFT). As a diffuse object became smooth, the first order probability density function was changed from negative exponential to sharp peak gaussian centered around mean intensity.
Publisher
ELSEVIER SCIENCE BV
Issue Date
1993-07
Language
ENG
Keywords

INTENSITY

Citation

OPTICS COMMUNICATIONS, v.100, no.5-6, pp.508 - 517

ISSN
0030-4018
URI
http://hdl.handle.net/10203/65651
Appears in Collection
PH-Journal Papers(저널논문)
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