Modelling and reconstruction of gabor-type holograms

The processes of modelling and reconstruction of holograms are based on the calculation of the diffraction integral either on its kirchhoff-fresnel or rayleight-sommerfeld formulation. Numerically, such an integral can be evaluated via different approaches: the convolution theorem, angular spectrum, and fresnel transform, among others. In this paper, the modelling of gabor-type in-line holograms of opaque particles of different diameters is presented. Those holograms are thereafter reconstructed by the numerical evaluation of the diffraction process that a spherical wavefront undergoes when it illuminates the hologram. The modelling-reconstruction process is employed for studying the performance of digital in-line holographic microscopy while the concentration of a simulated monodispersed monolayer is varied.

• Autores: Lora, Gabriel Jaime; Múnera Ortiz, Natalia; García Sucerquia, Jorge Iván
• Tipo de recurso: Article of journal
• Fecha de publicación: 2011
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/37741
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/37741; http://bdigital.unal.edu.co/27825/
• Palabra clave: Digital in-line holographic microscopy; diffraction; hologram reconstruction; microscopy.
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional