Investigation of stability of nanobubble suspensions at p120 bar pressure wherein we plot of the ratio of the Gaussian fitting parameters, b/a, vs. photodetector signal received from the laser, U, vs. t. The reference intensity before compression-decompression for both high- and low-pressure samples are shown in (C) using an arrow. Moreover, the gray highlighted portion in (C) represents the compression and decompression cycle where t=0 is the decompression time. Please note that the gray values in (C), (F), (I), and (L) are in arbitrary units and the error associated with the measurement would be on the same order as the uncertainty of the measurement.