Fig. 2: ESR on high-spin states.
From: Reversible spin-optical interface in luminescent organic radicals
a, Transient half-field continuous-wave X-band (9.7 GHz) ESR spectra at 80 K following 600 nm excitation, showing Δms = 3 and Δms = 2 transitions in frozen toluene solution of R-A and a patterned Δms = 2 in R-A-R. b, Transient full-field continuous-wave X-band ESR Δms = 1 spectra \ (points) and simulations (lines) of TTM-1Cz-An frozen toluene solution at 150 K following 600 nm excitation, and schematic population patterns extracted from the model. Circle size is proportional to the sublevel population at early (blue) and late (red) times. c, Temperature dependence of TTM-1Cz-An quartet (331.5 mT) polarization inversion. d, Transient nutation at 80 K of dilute frozen toluene solution of TTM-1Cz-An following 600 nm excitation, indicating quartet (S = 3/2) state formation. FFT, fast Fourier transform. e, Transient nutation at 80 K of dilute frozen toluene solution of (TTM-1Cz)2-An following 600 nm excitation, showing quintet (S = 2) multiplicity of the polarized signal. f, Rabi oscillations on the TTM-1Cz-An quartet (331.5 mT) at 80 K as a function of microwave power. a.u., arbitrary units.
