Vol. 33, Issue 2-3, pp. 293-305 (2003)

Vol. 33 Issue 2 pp. 293-305

Range dependent radiation leakage from thin scattering columns due to multiple small angle scatter

Yury A. Kravtsov, Leon A. Apresyan, Ara A. Asatryan, Janusz Chrzanowski, Jozef Kirkiewicz

Keywords

light scattering, extinction, multiple scattering, radiative transfer

Abstract

The phenomenon of range dependent radiation leakage from thin random columns caused by small angle multiple scatter is analysed. On the basis of modified Born approximation (Ishimaru, 1978; Apresyan and Kravtsov, 1996), it is shown that extinction coefficient, describing energy leakage due to multiple scatter on large (as compared to wavelength) inhomogeneities, first increases proportionally to distance z1/2 and then saturates on the level which might significantly exceed conventional extinction coefficient, connected with large angle light scatter on small inhomogeneities. The effect might be observed in many physical systems, for example, in a tube filled with water emulsion or suspension, containing small and large particles. The phenomenon may be helpful in distinguishing the contribution of small and large inhomogeneities to total extinction.

Vol. 33
Issue 2
pp. 293-305

0.7 MB

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Optica Applicata
Wrocław University of Science and Technology
Faculty of Fundamental Problems of Technology
Wybrzeże Wyspiańskiego 27
50-370 Wrocław, Poland

Publisher

Wrocław University of Science and Technology
Faculty of Fundamental Problems of Technology
Wybrzeże Wyspiańskiego 27
50-370 Wrocław, Poland

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