Fig. 2 | Nature Communications

Fig. 2

From: A molecular movie of ultrafast singlet fission

Fig. 2The alternative text for this image may have been generated using AI.

Impulsive vibrational spectroscopy of DP-Mes. a Wavelength-resolved impulsive Raman map of DP-Mes thin film following impulsive photoexcitation into S1. FFT: fast Fourier transform. b Impulsive Raman spectra for different spectral components, integrated as shown by brackets in (a): stimulated emission—645–665 nm (red, S1), ground-state bleach—605–625 nm (black, S0), excited-state absorption—515–525 nm (blue, 1TT). The off-resonant impulsive Raman spectrum of DP-Mes in S0 averaged over probe wavelengths from 605 to 625 nm is shown for comparison (grey, details in Methods). Dashed vertical lines highlight the difference between ground-state vibrational modes and those identified in 1TT. All spectra are normalised to the strongest peak

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