Abstract

Low-Frequency Backscattering From Focal Area of Focused Beam

D.A.Kas'yanov, G.M.Shalashov (Radiophysics Research Institute, Nizhny Novgorod, Russia)

e-mail: kasd@nirfi.sci-nnov.ru

The report demonstrates experimental investigating of low-frequency diffraction from focal area of various focused beams. Particularly, data are presented on broad-angle diffraction of the result of initial signal (radiopulse) nonlinear transformation in focal area of convergent spherical wave front and cylindrical divergent focused wave front. It is shown, that not only effective nonlinear parameters data could be used but it is possible exact focus location investigating.

Section : 4