Talbot effect for periodical objects limited by finite apertures : a new interpretation
ABSTRACT: The paper presents a new interpretation of the Talbot effect for periodical objects limited by finite apertures. According to the proposed approach, a self-image of a real, finite object is a superposition of deformed images of an elementary cell. The singular elementary cell image is equi...
- Autores:
-
Barrera Ramírez, John Fredy
Henao Henao, Rodrigo
Jaroszewicz, Zbigniew
Kolodziejczyk, Andrzej
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2005
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- eng
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/9331
- Acceso en línea:
- http://hdl.handle.net/10495/9331
- Palabra clave:
- Diferencias finitas
Finite differences
Procesamiento de imágenes
Image processing
Efecto talbot
Talbot effect
Difracción
Diffraction
Imagen
- Rights
- openAccess
- License
- Atribución-NoComercial-SinDerivadas 2.5 Colombia
| Summary: | ABSTRACT: The paper presents a new interpretation of the Talbot effect for periodical objects limited by finite apertures. According to the proposed approach, a self-image of a real, finite object is a superposition of deformed images of an elementary cell. The singular elementary cell image is equivalent to that formed in a proper optical system. Two possible optical arrangements are discussed. The theoretical description makes possible to define a structure of selfimages. Particularly, the approach enables a determination of apertures’ dimensions, which lead to self-images of a reasonable quality in a desired region of an image plane. The theory is illustrated and verified by numerical simulations. |
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