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dc.contributor.authorLiu, Yuandaen
dc.contributor.authorFang, Hanlinen
dc.contributor.authorAbdullah Rasmitaen
dc.contributor.authorZhou, Yuen
dc.contributor.authorLi, Juntaoen
dc.contributor.authorYu, Tingen
dc.contributor.authorXiong, Qihuaen
dc.contributor.authorZheludev, Nikolayen
dc.contributor.authorLiu, Jinen
dc.contributor.authorGao, Weiboen
dc.identifier.citationLiu, Y., Fang, H., Abdullah Rasmita, Zhou, Y., Li, J., Yu, T., . . . Gao, W. (2019). Room temperature nanocavity laser with interlayer excitons in 2D heterostructures. Science Advances, 5(4), eaav4506-. doi:10.1126/sciadv.aav4506en
dc.description.abstractAtomically thin layered two-dimensional (2D) materials have provided a rich library for both fundamental research and device applications. Bandgap engineering and controlled material response can be achieved from artificial heterostructures. Recently, excitonic lasers have been reported using transition metal dichalcogenides; however, the emission is still the intrinsic energy bandgap of the monolayers. Here, we report a room temperature interlayer exciton laser with MoS2/WSe2 heterostructures. The onset of lasing was identified by the distinct kink in the “L-L” curve and the noticeable spectral linewidth collapse. Different from visible emission of intralayer excitons in monolayer components, our laser works in the infrared range, which is fully compatible with the well-established technologies in silicon photonics. Long lifetime of interlayer excitons relaxes the requirement of the cavity quality factor by orders of magnitude. Room temperature interlayer exciton lasers might open new perspectives for developing coherent light sources with tailored optical properties on silicon photonics platforms.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent5 p.en
dc.relation.ispartofseriesScience Advancesen
dc.rights© 2019 The Author(s). Some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).en
dc.subjectRoom Temperatureen
dc.subjectNanocavity Laseren
dc.titleRoom temperature nanocavity laser with interlayer excitons in 2D heterostructuresen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.researchThe Photonics Instituteen
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en
dc.description.versionPublished versionen
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