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Reconfiguration of microring resonators by liquid adhesion
KTH, School of Electrical Engineering (EES), Microsystem Technology (Changed name 20121201).ORCID iD: 0000-0001-9008-8402
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2008 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 93, no 20, 203114Article in journal (Refereed) Published
Abstract [en]

We present a procedure to reconfigure microring resonators based on liquid surface adhesion. Droplets of organic solvents were deposited over Si3N4/SiO2 strip- and slot-waveguide ring resonators, and the transmission spectra were measured several hours after the evaporation of the droplets at room temperature. Our measurements show that the optical properties of the microrings are significantly modified by liquid adhered to the waveguides, persisting even 96 h after bulk evaporation. Liquid-solid interfacial forces slow down liquid evaporation at the nanoscale, enabling permanent photonic configurations. Rewriteability is achieved by removing the adhered liquid with heat.

Place, publisher, year, edition, pages
2008. Vol. 93, no 20, 203114
Keyword [en]
adhesion, circular waveguides, evaporation, microcavities, micromechanical resonators, silicon compounds
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-17997DOI: 10.1063/1.3033528ISI: 000261141400057Scopus ID: 2-s2.0-56849094688OAI: oai:DiVA.org:kth-17997DiVA: diva2:336042
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QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Gylfason, Kristinn BjörgvinSohlström, Hans

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