Three-dimensional reconstruction of non-homogeneous dielectric objects by the coupled-dipole method



Document title: Three-dimensional reconstruction of non-homogeneous dielectric objects by the coupled-dipole method
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000408622
ISSN: 0103-9733
Authors: 1
2
Institutions: 1Universidade Federal da Bahia, Instituto de Fisica, Salvador, Bahia. Brasil
2Universidade Estadual de Feira de Santana, Departamento de Fisica, Feira de Santana, Bahia. Brasil
Year:
Season: Jun
Volumen: 37
Number: 2A
Pages: 325-330
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract In this paper we present an inversion procedure for electromagnetic scattering, based on the coupled-dipole method (CDM) combined with an inversion algorithm making use of the singular value decomposition procedure associated with a regularization factor. This method permits to obtain images of non-homogeneous dielectric objects whose dimensions are comparable to the incident wavelength. The feasibility of this method is showed in two synthetic examples using the CDM with 257 and 515 dipoles, for spherical objects with a spherical inclusion. The method also works if the scattered electric field, which is the input data, is corrupted with Gaussian noise
Disciplines: Física y astronomía
Keyword: Física,
Física de partículas y campos cuánticos,
Dispersión,
Dispersión electromagnética
Keyword: Physics and astronomy,
Particle physics and quantum fields,
Physics,
Scattering,
Electromagnetic scattering
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