Journal Article

FZJ-2019-06173

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Electro-optic sensor for static fields

Grasdijk, J. O. ; Bai, X. F. ; Engin, I.FZJ* ; Jungmann, K. (Corresponding author) ; Krause, H.-J.FZJ* ; Niederländer, B.FZJ* ; Offenhäusser, A.FZJ* ; Repetto, M. ; Willmann, L.Extern* ; Zimmer, S.

2019
Springer76635 Berlin

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Please use a persistent id in citations: http://hdl.handle.net/2128/23948  doi:10.1007/s00340-019-7326-5

Abstract: A sensor has been developed for low frequency and DC electric fields E. The device is capable of measuring fields with Delta-E = 4 (1) V/cm resolution. It is based on a Y-cut Z-propagation lithium niobate electro-optic crystal. For a particular commercially available bare crystal, we achieved an in air time constant tau_c(air) = 6.4(1.8) h for the decay of the electro-optic signal. This enables field monitoring for several hours. As an application, we demonstrated that a constant electric field Eext = 640 V/cm applied via external electrodes to a particular spherical glass container holding an Xe/He gas mixture decays inside this cell with a time constant tau-E-glass = 2.5(5) h. This is sufficient for the needs of experiments searching for a permanent electric dipole moment in 129Xe. An integrated electric field sensor has been constructed which is coupled to a light source and light detectors via optical fibers. The sensor head does not contain any electrically conducting material.

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Contributing Institute(s):

1. Bioelektronik (ICS-8)

Research Program(s):

1. 523 - Controlling Configuration-Based Phenomena (POF3-523) (POF3-523)

Appears in the scientific report 2019

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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