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arXiv · 2208.12159

Bichromatic Imaging of Single Molecules in an Optical Tweezer Array

Connor M. Holland·Yukai Lu·Lawrence W. Cheuk
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Abstract

We report on a novel bichromatic fluorescent imaging scheme for background-free detection of single CaF molecules trapped in an optical tweezer array. By collecting fluorescence on one optical transition while using another for laser-cooling, we achieve an imaging fidelity of 97.7(2)% and a non-destructive detection fidelity of 95.5(6)%. We characterize loss mechanisms of our scheme, many of which are generically relevant to the fluorescent detection of trapped molecules, including two-photon decay and admixtures of higher excited states that are induced by the trapping light.

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Connor M. Holland, Yukai Lu, Lawrence W. Cheuk. 2022-08-25. Bichromatic Imaging of Single Molecules in an Optical Tweezer Array. https://doi.org/10.1103/physrevlett.131.053202

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