Room-Temperature Optically Detected Coherent Control of Molecular Spins

Optically interfaced molecular spins are a promising platform for quantum sensing and imaging. Key for such applications is optically detecting coherent spin manipulation at room temperature. Here, using the photoexcited triplet state of organic chromophores (pentacene doped in p-terphenyl), we opti...

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Bibliographic Details
Published in:Physical review letters Vol. 133; no. 12; p. 120801
Main Authors: Mena, Adrian, Mann, Sarah K, Cowley-Semple, Angus, Bryan, Emma, Heutz, Sandrine, McCamey, Dane R, Attwood, Max, Bayliss, Sam L
Format: Journal Article
Language:English
Published: United States 20-09-2024
Online Access:Get full text
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Summary:Optically interfaced molecular spins are a promising platform for quantum sensing and imaging. Key for such applications is optically detecting coherent spin manipulation at room temperature. Here, using the photoexcited triplet state of organic chromophores (pentacene doped in p-terphenyl), we optically detect coherent spin manipulation with photoluminescence contrasts exceeding 15% at room temperature, both in a molecular crystal and thin film. We further demonstrate how multifrequency spin control could enhance such systems. These results open opportunities for room-temperature quantum sensors that capitalize on the versatility of synthetic chemistry.
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ISSN:0031-9007
1079-7114
1079-7114
DOI:10.1103/PhysRevLett.133.120801