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dc.contributor.authorTran, Toan Trongen
dc.contributor.authorRegan, Blakeen
dc.contributor.authorEkimov, Evgeny A.en
dc.contributor.authorMu, Zhaoen
dc.contributor.authorZhou, Yuen
dc.contributor.authorGao, Wei-boen
dc.contributor.authorNarang, Prinehaen
dc.contributor.authorSolntsev, Alexander S.en
dc.contributor.authorToth, Milosen
dc.contributor.authorAharonovich, Igoren
dc.contributor.authorBradac, Carloen
dc.identifier.citationTran, T. T., Regan, B., Ekimov, E. A., Mu, Z., Zhou, Y., Gao, W., . . . Bradac, C. (2019). Anti-Stokes excitation of solid-state quantum emitters for nanoscale thermometry. Science Advances, 5(5), eaav9180-. doi:10.1126/sciadv.aav9180en
dc.description.abstractColor centers in solids are the fundamental constituents of a plethora of applications such as lasers, light-emitting diodes, and sensors, as well as the foundation of advanced quantum information and communication technologies. Their photoluminescence properties are usually studied under Stokes excitation, in which the emitted photons are at a lower energy than the excitation ones. In this work, we explore the opposite anti-Stokes process, where excitation is performed with lower-energy photons. We report that the process is sufficiently efficient to excite even a single quantum system—namely, the germanium-vacancy center in diamond. Consequently, we leverage the temperature-dependent, phonon-assisted mechanism to realize an all-optical nanoscale thermometry scheme that outperforms any homologous optical method used to date. Our results frame a promising approach for exploring fundamental light-matter interactions in isolated quantum systems and harness it toward the realization of practical nanoscale thermometry and sensing.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.extent6 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.subjectAnti-Stokes Excitationen
dc.subjectNanoscale Thermometryen
dc.titleAnti-Stokes excitation of solid-state quantum emitters for nanoscale thermometryen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionPublished versionen
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