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Elastomer based electrically tunable, optical microcavities

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Slowik_2016_Elastomer_APL_AAM.pdf (2.414Mb)
Date
26/10/2016
Author
Slowik, Irma
Kronenberg, Nils Michael
Franke, Markus
Fischer, Axel
Richter, Andreas
Gather, Malte Christian
Leo, Karl
Keywords
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
NDAS
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Abstract
Tunable optical elements are mostly realized by microelectromechanical systems, which require expensive and complex lithography during processing. We demonstrate an alternative device based on an electrically tunable microcavity employing a dielectric soft elastomer actuator. The cavity resonance is varied by changing the physical cavity thickness due to electrostriction of the soft elastomer. We realize a tunable metal-elastomerDBR multi-half wavelength microcavity with a cavity layer thickness around 12 µm and quality factors up to 700. Applying a voltage up to 60 V between bottom ITO and top metal electrode tunes the wavelength of the cavity modes up to ∆λ = 14 nm, which relates to a cavity thickness change of about 200 nm. This concept allows the implementation of tunable optical elements like tunable filters or resonators with low cost and simple processing.
Citation
Slowik , I , Kronenberg , N M , Franke , M , Fischer , A , Richter , A , Gather , M C & Leo , K 2016 , ' Elastomer based electrically tunable, optical microcavities ' , Applied Physics Letters , vol. 109 , no. 17 , 171104 . https://doi.org/10.1063/1.4966549
Publication
Applied Physics Letters
Status
Peer reviewed
DOI
https://doi.org/10.1063/1.4966549
ISSN
0003-6951
Type
Journal article
Rights
© 2016, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at scitation.aip.org / http://dx.doi.org/10.1063/1.4966549
Description
This work is supported in part by the German Research Foundation (DFG) within the Cluster of Excellence Center for Advancing Electronics Dresden (cfaed) and by the European Social Fund via the OrganoMechanics project. M.C.G. and N.M.K acknowledge support by the Scottish Funding Council (via SUPA) and the Human Frontier Science Program (RG0074/2013).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/9712

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