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dc.contributor.authorYang, Shanchengen
dc.contributor.authorTa, Van Duongen
dc.contributor.authorWang, Yueen
dc.contributor.authorChen, Ruien
dc.contributor.authorHe, Tingchaoen
dc.contributor.authorDemir, Hilmi Volkanen
dc.contributor.authorSun, Handongen
dc.identifier.citationYang, S., Ta, V. D., Wang, Y., Chen, R., He, T., Demir, H. V., & Sun, H. (2016). Reconfigurable liquid whispering gallery mode microlasers. Scientific Reports, 6, 27200-. doi:10.1038/srep27200en
dc.description.abstractEngineering photonic devices from liquid has been emerging as a fascinating research avenue. Reconfigurably tuning liquid optical micro-devices are highly desirable but remain extremely challenging because of the fluidic nature. In this article we demonstrate an all-liquid tunable whispering gallery mode microlaser floating on a liquid surface fabricated by using inkjet print technique. We show that the cavity resonance of such liquid lasers could be reconfigurably manipulated by surface tension alteration originated from the tiny concentration change of the surfactant in the supporting liquid. As such, remarkable sensing of water-soluble organic compounds with a sensitivity of free spectral range as high as 19.85 THz / (mol · mL−1) and the detectivity limit around 5.56 × 10−3 mol · mL−1 is achieved. Our work provides not only a novel approach to effectively tuning a laser resonator but also new insight into potential applications in biological, chemical and environmental sensing.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent9 p.en
dc.relation.ispartofseriesScientific Reportsen
dc.rights© 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
dc.subjectWhispering Gallery Modesen
dc.titleReconfigurable liquid whispering gallery mode microlasersen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.researchCentre for Disruptive Photonic Technologiesen
dc.contributor.researchLuminous! Centre of Excellence for Semiconductor Lighting and Displaysen
dc.description.versionPublished versionen
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