179813.fig.002a
(a)
179813.fig.002b
(b)
179813.fig.002c
(c)
Figure 2: (a) shows an example of spectrum without (red) and with (green) application of a point stress. (b) shows the ratio of the spectra (red) and the fitting (green) to a cos2 function. (c) shows the phase (red) of the cos2 function at 1064 nm for 8 positions of the point stress and a fit to a straight line (green).