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Title: Anti-Stokes excitation of solid-state quantum emitters for nanoscale thermometry
Authors: Tran, Toan Trong
Regan, Blake
Ekimov, Evgeny A.
Mu, Zhao
Zhou, Yu
Gao, Wei-bo
Narang, Prineha
Solntsev, Alexander S.
Toth, Milos
Aharonovich, Igor
Bradac, Carlo
Keywords: DRNTU::Science::Physics
Anti-Stokes Excitation
Nanoscale Thermometry
Issue Date: 2019
Source: Tran, 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.aav9180
Series/Report no.: Science Advances
Abstract: Color 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.
DOI: 10.1126/sciadv.aav9180
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).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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