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20 August 2020 Single organic molecules for applications in quantum technology
Alex Clark
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Proceedings Volume 11464, Physical Chemistry of Semiconductor Materials and Interfaces XIX; 114640A (2020) https://doi.org/10.1117/12.2567619
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
Single organic molecules hold great promise for generating, manipulating, and storing single photons. Such processes form the basis for new quantum-enhanced technologies such as sensing, communications, and computation. In this talk I will focus on a particularly promising molecule – dibenzoterrylene (DBT). When DBT is introduced into a solid crystal of anthracene it is photostable and emits light between 780 and 795 nm. When cooled to cryogenic temperature, DBT is isolated from phonon-induced dephasing meaning that the photons have a lifetime-limited. I will present recent results in growing DBT-doped anthracene crystals, introducing these to nanophotonic interfaces for enhancing the collection of photons, tuning the DBT emission wavelength to coincide with rubidium atomic absorption, and finally pump-probe spectroscopy experiments to find long-lived triplet states in DBT which will be useful for building a single-molecule quantum memory.
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Alex Clark "Single organic molecules for applications in quantum technology", Proc. SPIE 11464, Physical Chemistry of Semiconductor Materials and Interfaces XIX, 114640A (20 August 2020); https://doi.org/10.1117/12.2567619
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KEYWORDS
Molecules
Digital breast tomosynthesis
Photons
Absorption
Crystals
Quantum memory
Cryogenics
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