A remote laboratory for optical levitation of charged droplets

We present a remotely controlled experiment in which liquid droplets are levitated by a vertically aligned focused laser beam. The droplets levitate at the point where the photon pressure of the focused laser beam balances the gravitational force. The size of a trapped droplet can be measured by det...

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Detalles Bibliográficos
Autores: Galán, Daniel, Isaksson, Oscar, Rostedt, Mats, Enger, Jonas, Hanstorp, Dag, Torre Cubillo, Luis de la
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Nacional de Educación a Distancia
Repositorio:e-spacio. Repositorio Institucional de la UNED
Idioma:inglés
OAI Identifier:oai:e-spacio.uned.es:20.500.14468/26982
Acceso en línea:https://hdl.handle.net/20.500.14468/26982
Access Level:acceso abierto
Palabra clave:1203.17 Informática
1203 Ciencia de los ordenadores
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spelling A remote laboratory for optical levitation of charged dropletsGalán, DanielIsaksson, OscarRostedt, MatsEnger, JonasHanstorp, DagTorre Cubillo, Luis de la1203.17 Informática1203 Ciencia de los ordenadoresWe present a remotely controlled experiment in which liquid droplets are levitated by a vertically aligned focused laser beam. The droplets levitate at the point where the photon pressure of the focused laser beam balances the gravitational force. The size of a trapped droplet can be measured by detecting the diffraction pattern created by the trapping laser light. The charge on the trapped droplet can thereafter be determined by observing its motion when a vertically directed electrical field is applied. This experiment allows a student to study many fundamental physics processes, such as photon pressure, diffraction of light, or the motion of charged particles in electrical fields. The complexity of the experiments and the concept studied make this suitable for advanced studies in physics. The laser power required in the experiment is about 1 W, which is a thousand times greater than the value of 1 mW at which lasers begin to be capable of causing harm to eyes; high voltages are also used. Further, the cost of the equipment is relatively high, which limits its availability to most undergraduate teaching laboratories. It thus constitutes an ideal experiment for remote control.IOP Sciencee-Spacio UNED20252025-07-0220182018-04-1720182018-04-17journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14468/26982reponame:e-spacio. Repositorio Institucional de la UNEDinstname:Universidad Nacional de Educación a DistanciaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.esoai:e-spacio.uned.es:20.500.14468/269822026-06-06T12:38:31Z
dc.title.none.fl_str_mv A remote laboratory for optical levitation of charged droplets
title A remote laboratory for optical levitation of charged droplets
spellingShingle A remote laboratory for optical levitation of charged droplets
Galán, Daniel
1203.17 Informática
1203 Ciencia de los ordenadores
title_short A remote laboratory for optical levitation of charged droplets
title_full A remote laboratory for optical levitation of charged droplets
title_fullStr A remote laboratory for optical levitation of charged droplets
title_full_unstemmed A remote laboratory for optical levitation of charged droplets
title_sort A remote laboratory for optical levitation of charged droplets
dc.creator.none.fl_str_mv Galán, Daniel
Isaksson, Oscar
Rostedt, Mats
Enger, Jonas
Hanstorp, Dag
Torre Cubillo, Luis de la
author Galán, Daniel
author_facet Galán, Daniel
Isaksson, Oscar
Rostedt, Mats
Enger, Jonas
Hanstorp, Dag
Torre Cubillo, Luis de la
author_role author
author2 Isaksson, Oscar
Rostedt, Mats
Enger, Jonas
Hanstorp, Dag
Torre Cubillo, Luis de la
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv e-Spacio UNED
dc.subject.none.fl_str_mv 1203.17 Informática
1203 Ciencia de los ordenadores
topic 1203.17 Informática
1203 Ciencia de los ordenadores
description We present a remotely controlled experiment in which liquid droplets are levitated by a vertically aligned focused laser beam. The droplets levitate at the point where the photon pressure of the focused laser beam balances the gravitational force. The size of a trapped droplet can be measured by detecting the diffraction pattern created by the trapping laser light. The charge on the trapped droplet can thereafter be determined by observing its motion when a vertically directed electrical field is applied. This experiment allows a student to study many fundamental physics processes, such as photon pressure, diffraction of light, or the motion of charged particles in electrical fields. The complexity of the experiments and the concept studied make this suitable for advanced studies in physics. The laser power required in the experiment is about 1 W, which is a thousand times greater than the value of 1 mW at which lasers begin to be capable of causing harm to eyes; high voltages are also used. Further, the cost of the equipment is relatively high, which limits its availability to most undergraduate teaching laboratories. It thus constitutes an ideal experiment for remote control.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-04-17
2018
2018-04-17
2025
2025-07-02
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14468/26982
url https://hdl.handle.net/20.500.14468/26982
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
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Science
publisher.none.fl_str_mv IOP Science
dc.source.none.fl_str_mv reponame:e-spacio. Repositorio Institucional de la UNED
instname:Universidad Nacional de Educación a Distancia
instname_str Universidad Nacional de Educación a Distancia
reponame_str e-spacio. Repositorio Institucional de la UNED
collection e-spacio. Repositorio Institucional de la UNED
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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