A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals

Abstract A single-ion reservoir has been tested, and characterized in order to be used as a highly sensitive optical detector of electric signals arriving at the trapping electrodes. Our system consists of a single laser-cooled 40Ca+ ion stored in a Paul trap with rotational symmetry. The performanc...

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Autores principales:	Francisco Domínguez, Iñigo Arrazola, Jaime Doménech, Julen S. Pedernales, Lucas Lamata, Enrique Solano, Daniel Rodríguez
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3469a95b21c44bc59752234f4c206b94
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spelling	oai:doaj.org-article:3469a95b21c44bc59752234f4c206b942021-12-02T15:05:23ZA Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals10.1038/s41598-017-08782-52045-2322https://doaj.org/article/3469a95b21c44bc59752234f4c206b942017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08782-5https://doaj.org/toc/2045-2322Abstract A single-ion reservoir has been tested, and characterized in order to be used as a highly sensitive optical detector of electric signals arriving at the trapping electrodes. Our system consists of a single laser-cooled 40Ca+ ion stored in a Paul trap with rotational symmetry. The performance is observed through the axial motion of the ion, which is equivalent to an underdamped and forced oscillator. Thus, the results can be projected also to Penning traps. We have found that, for an ion oscillator temperature T axial ≲ 10 mK in the forced-frequency range ω z = 2π × (80,200 kHz), the reservoir is sensitive to a time-varying electric field equivalent to an electric force of 5.3(2) neV/μm, for a measured quality factor Q = 3875(45), and a decay time constant γ z = 88(2) s−1. This method can be applied to measure optically the strength of an oscillating field or induced (driven) charge in this frequency range within times of tens of milliseconds. Furthermore the ion reservoir has been proven to be sensitive to electrostatic forces by measuring the ion displacement. Since the heating rate is below 0.3 μeV/s, this reservoir might be used as optical detector for any ion or bunch of charged particles stored in an adjacent trap.Francisco DomínguezIñigo ArrazolaJaime DoménechJulen S. PedernalesLucas LamataEnrique SolanoDaniel RodríguezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Francisco Domínguez Iñigo Arrazola Jaime Doménech Julen S. Pedernales Lucas Lamata Enrique Solano Daniel Rodríguez A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals
description	Abstract A single-ion reservoir has been tested, and characterized in order to be used as a highly sensitive optical detector of electric signals arriving at the trapping electrodes. Our system consists of a single laser-cooled 40Ca+ ion stored in a Paul trap with rotational symmetry. The performance is observed through the axial motion of the ion, which is equivalent to an underdamped and forced oscillator. Thus, the results can be projected also to Penning traps. We have found that, for an ion oscillator temperature T axial ≲ 10 mK in the forced-frequency range ω z = 2π × (80,200 kHz), the reservoir is sensitive to a time-varying electric field equivalent to an electric force of 5.3(2) neV/μm, for a measured quality factor Q = 3875(45), and a decay time constant γ z = 88(2) s−1. This method can be applied to measure optically the strength of an oscillating field or induced (driven) charge in this frequency range within times of tens of milliseconds. Furthermore the ion reservoir has been proven to be sensitive to electrostatic forces by measuring the ion displacement. Since the heating rate is below 0.3 μeV/s, this reservoir might be used as optical detector for any ion or bunch of charged particles stored in an adjacent trap.
format	article
author	Francisco Domínguez Iñigo Arrazola Jaime Doménech Julen S. Pedernales Lucas Lamata Enrique Solano Daniel Rodríguez
author_facet	Francisco Domínguez Iñigo Arrazola Jaime Doménech Julen S. Pedernales Lucas Lamata Enrique Solano Daniel Rodríguez
author_sort	Francisco Domínguez
title	A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals
title_short	A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals
title_full	A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals
title_fullStr	A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals
title_full_unstemmed	A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals
title_sort	single-ion reservoir as a high-sensitive sensor of electric signals
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/3469a95b21c44bc59752234f4c206b94
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A Single-Ion Reservoir as a High-Sensitive Sensor of Electric Signals

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