Title :
On retrieval of permittivity profile
Author :
Gaikovich, Konstantin ; Vorgul, Irena ; Marciniak, Marian
Author_Institution :
Ins. for Phys. of Microstruct., Acad. of Sci., Nizhny Novgorod, Russia
Abstract :
A new theoretical approach is proposed for solving the inverse problem of dielectric permittivity retrieval by a reflected field. It is based on the approximate solution of an integral equation, obtained by combining the integral equation for the electromagnetic field inside the object with an integral expression, which determines the diffracted field in the external region after the field inside it. The solution method based on the Tichonoffs (1983) theory of ill-posed problems is proposed. Also a simple scheme for fast estimation of the object permittivity profile has been worked out
Keywords :
approximation theory; electromagnetic fields; electromagnetic wave diffraction; electromagnetic wave reflection; integral equations; inverse problems; permittivity; Tichonoffs theory; approximate solution; dielectric permittivity retrieval; diffracted field; electromagnetic field; external region; fast estimation; ill-posed problems; integral equation; inverse problem solution; permittivity profile retrieval; reflected field; solution method; Dielectrics; Electromagnetic fields; Geometry; Integral equations; Inverse problems; Microstructure; Optical devices; Permittivity; Physics; Testing;
Conference_Titel :
Transparent Optical Networks, 2001. Proceedings of 2001 3rd International Conference on
Conference_Location :
Cracow
Print_ISBN :
0-7803-7096-1
DOI :
10.1109/ICTON.2001.934759
