Figure 8
APD scan performed as in Fig. 7 , but with an integration time of 0.2 s for each data point and the piezo voltage held constant at the maximum value. This scan was started 12 min after the end of the scan in Fig. 7 . (a) Entire normalized scan; (b) a region of this scan that shows periodic fringes. These fringes were visible in this scan from the beginning up to 4520 s, fading into a noiselike pattern soon after. |