TY - JOUR
T1 - Backscattered indicatrix from surfaces with random impedance
AU - Freilikher, V.
AU - Kaveh, M.
AU - Yurkevich, I.
PY - 1993/11/15
Y1 - 1993/11/15
N2 - Intensity enhancement in the retroreflection direction is studied for waves scattered by a random interface which has a bound state (surface wave). We have found that an enhanced backscattered peak appears as the result of competition of two mechanisms: multiple scattering of a surface wave along the interface, and its leakage to upper half-space. The last one is the important distinction of surface scattering, which shifts the diffuse pole and eliminates in a natural way the divergence of second moments, which is the crucial difficulty in existing theories. New results, valid when there is no real absorption in the medium, are obtained for the diffuse scattered intensity as a function of the angles near the antispecular direction.
AB - Intensity enhancement in the retroreflection direction is studied for waves scattered by a random interface which has a bound state (surface wave). We have found that an enhanced backscattered peak appears as the result of competition of two mechanisms: multiple scattering of a surface wave along the interface, and its leakage to upper half-space. The last one is the important distinction of surface scattering, which shifts the diffuse pole and eliminates in a natural way the divergence of second moments, which is the crucial difficulty in existing theories. New results, valid when there is no real absorption in the medium, are obtained for the diffuse scattered intensity as a function of the angles near the antispecular direction.
UR - http://www.scopus.com/inward/record.url?scp=43949163568&partnerID=8YFLogxK
U2 - 10.1016/0378-4371(93)90546-G
DO - 10.1016/0378-4371(93)90546-G
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AN - SCOPUS:43949163568
SN - 0378-4371
VL - 200
SP - 452
EP - 461
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
IS - 1-4
ER -