deletions | additions       diff --git a/figures/ALEX_alternation_double/caption.tex b/figures/ALEX_alternation_double/caption.tex  index abca293..dedccbc 100644  --- a/figures/ALEX_alternation_double/caption.tex  +++ b/figures/ALEX_alternation_double/caption.tex 
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\label{fig:altern_hist_double}  Histograms used for excitation alternation periods selection for two typical smFRET experiments.   Distributions of photons detected by the donor channels are in *green*, \textit{green},  and by the acceptor channel in *red*. \textit{red}.  The light *green* \textit{green}  and *red* \textit{red}  horizontal span mark the donor and acceptor period definitions. (a) µs-ALEX alternation histogram, i.e. histogram of timestamps *modulo* \textit{modulo}  the alternation period for a smFRET sample. (b) ns-ALEX nanotime histogram for a smFRET sample.