Figure 3: Exemplary PA signals of VIS441/TEG solution droplets as a function of time. | Nature Communications

Figure 3: Exemplary PA signals of VIS441/TEG solution droplets as a function of time.

From: Photoacoustics of single laser-trapped nanodroplets for the direct observation of nanofocusing in aerosol photokinetics

Figure 3

The decay of the signal is caused by photolysis of the solute. The experimental data (blue dots) are recorded for different droplet radii a and different power P of the excitation laser. (a,b) Recorded with the microphone set-up. (c,d) Recorded with the tuning fork setup. The red lines are fits to the experimental data providing experimental first half-lives t1/2 (see Fig. 4).

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