Room-temperature optically detected coherent control of molecular spins
- URL: http://arxiv.org/abs/2402.07572v1
- Date: Mon, 12 Feb 2024 11:06:29 GMT
- Title: Room-temperature optically detected coherent control of molecular spins
- Authors: Adrian Mena, Sarah K. Mann, Angus Cowley-Semple, Emma Bryan, Sandrine
Heutz, Dane R. McCamey, Max Attwood, Sam L. Bayliss
- Abstract summary: optically interfaced molecular spins are a promising platform for quantum technologies such as sensing and imaging.
Room-temperature optically detected coherent spin control is a key enabler for many applications.
These results open opportunities for room-temperature quantum technologies that can be systematically tailored through synthetic chemistry.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Benefiting from both molecular tunability and versatile methods for
deployment, optically interfaced molecular spins are a promising platform for
quantum technologies such as sensing and imaging. Room-temperature optically
detected coherent spin control is a key enabler for many applications,
combining sensitive readout, versatile spin manipulation, and ambient
operation. Here we demonstrate such functionality in a molecular spin system.
Using the photoexcited triplet state of organic chromophores (pentacene doped
in a para-terphenyl host), we optically detect coherent spin manipulation with
photoluminescence contrasts exceeding 10% and microsecond coherence times at
room temperature. We further demonstrate how coherent control of multiple
triplet sublevels can significantly enhance optical spin contrast, and extend
optically detected coherent control to a thermally evaporated thin film,
retaining high photoluminescence contrast and coherence times of order one
microsecond. These results open opportunities for room-temperature quantum
technologies that can be systematically tailored through synthetic chemistry.
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