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dc.contributor.authorDong, Weilingen_US
dc.contributor.authorLiu, Hailongen_US
dc.contributor.authorBehera, Jitendra K.en_US
dc.contributor.authorLu, Lien_US
dc.contributor.authorNg, Ray J. H.en_US
dc.contributor.authorSreekanth, Kandammathe Valiyaveeduen_US
dc.contributor.authorZhou, Xilinen_US
dc.contributor.authorYang, Joel K. W.en_US
dc.contributor.authorSimpson, Robert E.en_US
dc.identifier.citationDong, W., Liu, H., Behera, J. K., Lu, L., Ng, R. J. H., Sreekanth, K. V., . . . Simpson, R. E. (2019). Wide bandgap phase change material tuned visible photonics. Advanced Functional Materials, 29(6), 1806181-. doi:10.1002/adfm.201806181en_US
dc.description.abstractLight strongly interacts with structures that are of a similar scale to its wavelength, typically nanoscale features for light in the visible spectrum. However, the optical response of these nanostructures is usually fixed during the fabrication. Phase change materials offer a way to tune the properties of these structures in nanoseconds. Until now, phase change active photonics has used materials that strongly absorb visible light, which limits their application in the visible spectrum. In contrast, Sb2S3 is an underexplored phase change material with a bandgap that can be tuned in the visible spectrum from 2.0 to 1.7 eV. This tuneable bandgap is deliberately coupled to an optical resonator such that it responds dramatically in the visible spectrum to Sb2S3 reversible structural phase transitions. It is shown that this optical response can be triggered both optically and electrically. High‐speed reprogrammable Sb2S3 based photonic devices, such as those reported here, are likely to have wide applications in future intelligent photonic systems, holographic displays, and microspectrometers.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.relation.ispartofAdvanced Functional Materialsen_US
dc.rightsThis is the accepted version of the following article: Dong, W., Liu, H., Behera, J. K., Lu, L., Ng, R. J. H., Sreekanth, K. V., . . . Simpson, R. E. (2019). Wide bandgap phase change material tuned visible photonics. Advanced Functional Materials, 29(6), 1806181-, which has been published in final form at This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [].en_US
dc.titleWide bandgap phase change material tuned visible photonicsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionAccepted versionen_US
dc.subject.keywordsActive Photonicsen_US
dc.description.acknowledgementThis research was performed under the auspices of the SUTD-MIT International Design Center (IDC). The research project was funded by the Samsung GRO, the A*STAR Singapore-China joint research program Grant No. 1420200046, and the SUTD Digital Manufacturing and Design Centre (DManD) Grant No. RGDM 1530302. The authors are grateful for fruitful discussions with Seokho Yun.en_US
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