Liquid crystal lensacons, logarithmic and linear axicons

Until now, several attempts have been made to obtain axicons by using liquid crystals. Previous results had always a considerable deviation from the linear response and the resulting aperture is square. In addition, classical fabrications methods are expensive and only produce fixed phase profiles....

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Autores: Algorri Genaro, José Francisco|||0000-0002-2654-583X, Urruchi del Pozo, Virginia, García Cámara, Braulio, Sánchez Pena, José Manuel
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/29110
Acceso en línea:https://hdl.handle.net/10902/29110
Access Level:acceso abierto
Palabra clave:Axicons
Liquid crystal devices
Optical trapping
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spelling Liquid crystal lensacons, logarithmic and linear axiconsAlgorri Genaro, José Francisco|||0000-0002-2654-583XUrruchi del Pozo, VirginiaGarcía Cámara, BraulioSánchez Pena, José ManuelAxiconsLiquid crystal devicesOptical trappingUntil now, several attempts have been made to obtain axicons by using liquid crystals. Previous results had always a considerable deviation from the linear response and the resulting aperture is square. In addition, classical fabrications methods are expensive and only produce fixed phase profiles. In this study, a novel structure to obtain tunable axicons with a perfect conical shape and a circular aperture is proposed and theoretically studied. The proposed optical device is based on nematic liquid crystal and phase shifted electrical signals. A simulation program consisted of Finite Elements Method to solve the voltage distribution combined with the Frank-Oseen equation to solve the molecular position of the nematic liquid crystal is employed. This device is totally reconfigurable by using low voltage signals. The focus depth and the position of this one can be controlled electrically.This work was supported in part by the Ministerio de Ciencia e Innovación of Spain (grant No. TEC2009-13991-C02-01) and the Comunidad de Madrid (grant No. FACTOTEM2 S2009/ESP-1781).MDPI20142014-03-28journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/29110Materials, 2014, 7(4), 2593-2604reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/291102026-06-02T12:39:31Z
dc.title.none.fl_str_mv Liquid crystal lensacons, logarithmic and linear axicons
title Liquid crystal lensacons, logarithmic and linear axicons
spellingShingle Liquid crystal lensacons, logarithmic and linear axicons
Algorri Genaro, José Francisco|||0000-0002-2654-583X
Axicons
Liquid crystal devices
Optical trapping
title_short Liquid crystal lensacons, logarithmic and linear axicons
title_full Liquid crystal lensacons, logarithmic and linear axicons
title_fullStr Liquid crystal lensacons, logarithmic and linear axicons
title_full_unstemmed Liquid crystal lensacons, logarithmic and linear axicons
title_sort Liquid crystal lensacons, logarithmic and linear axicons
dc.creator.none.fl_str_mv Algorri Genaro, José Francisco|||0000-0002-2654-583X
Urruchi del Pozo, Virginia
García Cámara, Braulio
Sánchez Pena, José Manuel
author Algorri Genaro, José Francisco|||0000-0002-2654-583X
author_facet Algorri Genaro, José Francisco|||0000-0002-2654-583X
Urruchi del Pozo, Virginia
García Cámara, Braulio
Sánchez Pena, José Manuel
author_role author
author2 Urruchi del Pozo, Virginia
García Cámara, Braulio
Sánchez Pena, José Manuel
author2_role author
author
author
dc.subject.none.fl_str_mv Axicons
Liquid crystal devices
Optical trapping
topic Axicons
Liquid crystal devices
Optical trapping
description Until now, several attempts have been made to obtain axicons by using liquid crystals. Previous results had always a considerable deviation from the linear response and the resulting aperture is square. In addition, classical fabrications methods are expensive and only produce fixed phase profiles. In this study, a novel structure to obtain tunable axicons with a perfect conical shape and a circular aperture is proposed and theoretically studied. The proposed optical device is based on nematic liquid crystal and phase shifted electrical signals. A simulation program consisted of Finite Elements Method to solve the voltage distribution combined with the Frank-Oseen equation to solve the molecular position of the nematic liquid crystal is employed. This device is totally reconfigurable by using low voltage signals. The focus depth and the position of this one can be controlled electrically.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-03-28
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/29110
url https://hdl.handle.net/10902/29110
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Materials, 2014, 7(4), 2593-2604
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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