Inline digital holographic movie based on a double-sideband filter

Authors
Ramirez, Claudio; Lizana, Ángel; Iemmi, Claudio César; Campos, Juan
Publication Year
2015
Language
English
Format
article
Status
Published version
Description
This Letter proposes a new optical architecture based on a double-sideband filter, simultaneously applied at the Fourier plane, for inline digital holography. The proposed architecture not only allows removal of the conjugate images in the reconstruction process but also reduces the distortions that usually appear when using a single-sideband filter. We first introduce the mathematical model that explains the method and then describe the optical setup used for the implementation. The optical system includes a parallel aligned liquid crystal display placed at the Fourier plane that simultaneously filters positive and negative frequencies, when properly combined with linear polarizers. This feature makes the device useful to register dynamic processes. Finally, we tested the setup by registering a holographic movie of microscopic moving objects placed at different planes.
Fil: Ramirez, Claudio. Universitat Autònoma de Barcelona; España
Fil: Lizana, Ángel. Universitat Autònoma de Barcelona; España
Fil: Iemmi, Claudio César. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Campos, Juan. Universitat Autònoma de Barcelona; España
Subject
Holography
Fourier optics and signal processing
Polarization selective devices
Spatial light modulatos
Polarization
Wave propagation
Otras Ciencias Físicas
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/59633