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. Author manuscript; available in PMC: 2023 Dec 29.
Published in final edited form as: Nat Photonics. 2023 Jun 29;17(10):846–855. doi: 10.1038/s41566-023-01243-8

Extended Data Fig. 2. Reduced photothermal background in acetonitrile-d3.

Extended Data Fig. 2

The fluorescence vs. IR-probe delay (tD) of ATTO680 in DMSO (blue) and acetonitrile-d3(orange) obtained using 1598 cm−1 IR frequency and 765-nm probe wavelength. While the signal-to-background (S/B) ratio is about 8% in DMSO, it increases to 56% in acetonitrile-d3.