Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency

The focusing properties of Fresnel Zone Plates (FZPs) against frequency are analyzed in this work. It is shown that the FZP focal length depends almost linearly on the operating frequency. Focal depth and focal distortion are also considered, establishing a limit on the frequency span at which the o...

Descripción completa

Detalles Bibliográficos
Autores principales: Fuster, José Miguel, Candelas, Pilar, Castiñeira-Ibáñez, Sergio, Pérez-López, Sergio, Rubio, Constanza
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751681/
https://www.ncbi.nlm.nih.gov/pubmed/29206137
http://dx.doi.org/10.3390/s17122809
_version_ 1783290000242114560
author Fuster, José Miguel
Candelas, Pilar
Castiñeira-Ibáñez, Sergio
Pérez-López, Sergio
Rubio, Constanza
author_facet Fuster, José Miguel
Candelas, Pilar
Castiñeira-Ibáñez, Sergio
Pérez-López, Sergio
Rubio, Constanza
author_sort Fuster, José Miguel
collection PubMed
description The focusing properties of Fresnel Zone Plates (FZPs) against frequency are analyzed in this work. It is shown that the FZP focal length depends almost linearly on the operating frequency. Focal depth and focal distortion are also considered, establishing a limit on the frequency span at which the operating frequency can be shifted. An underwater FZP ultrasound focusing system is demonstrated, and experimental results agree with the theoretical analysis and simulations.
format Online
Article
Text
id pubmed-5751681
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-57516812018-01-10 Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency Fuster, José Miguel Candelas, Pilar Castiñeira-Ibáñez, Sergio Pérez-López, Sergio Rubio, Constanza Sensors (Basel) Article The focusing properties of Fresnel Zone Plates (FZPs) against frequency are analyzed in this work. It is shown that the FZP focal length depends almost linearly on the operating frequency. Focal depth and focal distortion are also considered, establishing a limit on the frequency span at which the operating frequency can be shifted. An underwater FZP ultrasound focusing system is demonstrated, and experimental results agree with the theoretical analysis and simulations. MDPI 2017-12-05 /pmc/articles/PMC5751681/ /pubmed/29206137 http://dx.doi.org/10.3390/s17122809 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fuster, José Miguel
Candelas, Pilar
Castiñeira-Ibáñez, Sergio
Pérez-López, Sergio
Rubio, Constanza
Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency
title Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency
title_full Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency
title_fullStr Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency
title_full_unstemmed Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency
title_short Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency
title_sort analysis of fresnel zone plates focusing dependence on operating frequency
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751681/
https://www.ncbi.nlm.nih.gov/pubmed/29206137
http://dx.doi.org/10.3390/s17122809
work_keys_str_mv AT fusterjosemiguel analysisoffresnelzoneplatesfocusingdependenceonoperatingfrequency
AT candelaspilar analysisoffresnelzoneplatesfocusingdependenceonoperatingfrequency
AT castineiraibanezsergio analysisoffresnelzoneplatesfocusingdependenceonoperatingfrequency
AT perezlopezsergio analysisoffresnelzoneplatesfocusingdependenceonoperatingfrequency
AT rubioconstanza analysisoffresnelzoneplatesfocusingdependenceonoperatingfrequency

Ejemplares similares