{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360298762031600512.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1038/s41467-021-24751-z"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/s41467-021-24751-z.pdf"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/s41467-021-24751-z"}}],"dc:title":[{"@value":"Continuous-wave upconversion lasing with a sub-10 W cm−2 threshold enabled by atomic disorder in the host matrix"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Microscale lasers efficiently deliver coherent photons into small volumes for intracellular biosensors and all-photonic microprocessors. Such technologies have given rise to a compelling pursuit of ever-smaller and ever-more-efficient microlasers. Upconversion microlasers have great potential owing to their large anti-Stokes shifts but have lagged behind other microlasers due to their high pump power requirement for population inversion of multiphoton-excited states. Here, we demonstrate continuous-wave upconversion lasing at an ultralow lasing threshold (4.7 W cm<jats:sup>−2</jats:sup>) by adopting monolithic whispering-gallery-mode microspheres synthesized by laser-induced liquefaction of upconversion nanoparticles and subsequent rapid quenching (“liquid-quenching”). Liquid-quenching completely integrates upconversion nanoparticles to provide high pump-to-gain interaction with low intracavity losses for efficient lasing. Atomic-scale disorder in the liquid-quenched host matrix suppresses phonon-assisted energy back transfer to achieve efficient population inversion. Narrow laser lines were spectrally tuned by up to 3.56 nm by injection pump power and operation temperature adjustments. Our low-threshold, wavelength-tunable, and continuous-wave upconversion microlaser with a narrow linewidth represents the anti-Stokes-shift microlaser that is competitive against state-of-the-art Stokes-shift microlasers, which paves the way for high-resolution atomic spectroscopy, biomedical quantitative phase imaging, and high-speed optical communication via wavelength-division-multiplexing.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380298762031600517","@type":"Researcher","foaf:name":[{"@value":"Byeong-Seok Moon"}]},{"@id":"https://cir.nii.ac.jp/crid/1380298762031600512","@type":"Researcher","foaf:name":[{"@value":"Tae Kyung Lee"}]},{"@id":"https://cir.nii.ac.jp/crid/1380298762031600515","@type":"Researcher","foaf:name":[{"@value":"Woo Cheol Jeon"}]},{"@id":"https://cir.nii.ac.jp/crid/1380298762031600514","@type":"Researcher","foaf:name":[{"@value":"Sang Kyu Kwak"}]},{"@id":"https://cir.nii.ac.jp/crid/1380298762031600516","@type":"Researcher","foaf:name":[{"@value":"Young-Jin Kim"}]},{"@id":"https://cir.nii.ac.jp/crid/1380298762031600513","@type":"Researcher","foaf:name":[{"@value":"Dong-Hwan Kim"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"20411723"}],"prism:publicationName":[{"@value":"Nature Communications"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2021-07-21","prism:volume":"12","prism:number":"1"},"reviewed":"false","dc:rights":["https://creativecommons.org/licenses/by/4.0","https://creativecommons.org/licenses/by/4.0"],"url":[{"@id":"https://www.nature.com/articles/s41467-021-24751-z.pdf"},{"@id":"https://www.nature.com/articles/s41467-021-24751-z"}],"createdAt":"2021-07-21","modifiedAt":"2022-12-02","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360017280631142144","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Designing Semiconductor Nanowires for Efficient Photon Upconversion via Heterostructure Engineering"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1038/s41467-021-24751-z"},{"@type":"CROSSREF","@value":"10.1021/acsnano.2c04287_references_DOI_3mDMTpPjAB45yC8zyC5xcl250Bc"}]}