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Zero-Loss Optical Switch Based on Ionic Liquid Microdroplet Ewod Actuatio
KTH, School of Electrical Engineering and Computer Science (EECS), Micro and Nanosystems.ORCID iD: 0000-0002-3549-0228
KTH, School of Engineering Sciences (SCI), Applied Physics.
KTH, School of Electrical Engineering and Computer Science (EECS), Micro and Nanosystems.ORCID iD: 0000-0002-0080-0708
KTH, School of Engineering Sciences (SCI), Applied Physics.ORCID iD: 0000-0003-2136-4914
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2019 (English)In: 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII, Institute of Electrical and Electronics Engineers (IEEE), 2019, p. 2290-2293, article id 8808243Conference paper, Published paper (Refereed)
Abstract [en]

This paper reports the first optical shutter based on electrical actuation of microdroplets featuring zero insertion loss in the open state and broad-band operation. These features are achieved by electrowetting-on-dielectric (EWOD) actuation of ionic liquid microdroplets. Due to their negligible vapor pressure, ionic liquids allow the switch to robustly operate in air, unlike previously proposed systems in which the light had to cross several attenuating and refractive layers. Moreover, this solution enables operation in a much wider wavelength range, e.g. in the infrared spectrum where glass has strong absorption. Additionally, the proposed device requires lower voltage to operate (25 V) and features zero static power consumption.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2019. p. 2290-2293, article id 8808243
Keywords [en]
digital microfluidics, Electrowetting-on-dielectric, EWOD, ionic liquids, laser optics, microdroplet actuation, microfluidic device, optical component, optical shutter, optical switch
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-262638DOI: 10.1109/TRANSDUCERS.2019.8808243Scopus ID: 2-s2.0-85071941407ISBN: 9781728120072 (print)OAI: oai:DiVA.org:kth-262638DiVA, id: diva2:1361905
Conference
20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII; Estrel Congress CenterBerlin; Germany; 23 June 2019 through 27 June 2019
Note

QC 20191017

Available from: 2019-10-17 Created: 2019-10-17 Last updated: 2019-10-17Bibliographically approved

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Ribet, FedericoDe Luca, EleonoraOttonello Briano, FloriaSwillo, MarcinRoxhed, NiclasStemme, Göran

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