
This article is cited in 3 scientific papers (total in 3 papers)
Scattered radiation
Statistic and coherent properties of scattered light fields for different geometrical parameters of rough surfaces
P. A. Bakut^{}, V. I. Mandrosov^{} ^{} Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
Abstract:
The relation between the correlation and coherent properties of light fields scattered by rough surfaces and the geometrical parameters of these surfaces is analysed. It is shown that, if the coherence time of illuminating radiation is τ_{c}>10ω_{0} (where ω_{0} is the central frequency of the emission spectrum), then, by averaging the field intensity scattered by a rough surface over time T>10τ_{c} , we can determine the stationary regions and coherent parameters of the scattered field and the conditions imposed on the narrowband and chromatic (spectral) parameters of illuminating radiation. These regions, parameters, and conditions are specified by the following parameters: the coherence length L_{c}=τ_{c}c of illuminating radiation, the transverse size d of the backscattering region of the surface, the depth L_{s} of the backscattering region, the distance r_{c} from a receiving aperture to the surface, the size d_{ρ} of the receiving aperture, the central wavelength λ_{0}=c/ω_{0} of illuminating radiation, and the rootmeansquare deviation σ of the height of irregularities of the surface. The obtained results give the relations between L_{c} , L_{s} , and σ at which illuminating radiation behaves as monochromatic, quasimonochromatic or polychromatic radiation and the scattered field behaves as coherent, partially coherent or incoherent field.
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Quantum Electronics, 2006, 36:3, 239–246
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PACS:
42.25.Fx, 42.25.Kb Received: 25.10.2005
Citation:
P. A. Bakut, V. I. Mandrosov, “Statistic and coherent properties of scattered light fields for different geometrical parameters of rough surfaces”, Kvantovaya Elektronika, 36:3 (2006), 239–246 [Quantum Electron., 36:3 (2006), 239–246]
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http://mi.mathnet.ru/eng/qe13129 http://mi.mathnet.ru/eng/qe/v36/i3/p239
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