Fig. 6.

Time-resolved holographic polarization microscopy (THPM) based on time delays and spatial frequency division of the reference pulses for imaging laser-induced damage of a mica lamina sample (adapted from [70]). (a) Schematic of experimental setup. Black arrows indicates the pulses’ SOPs. KDP, potassium dihydrogen phosphate. Lower-right inset: Generation of four reference pulses. (b) Recorded hologram of a USAF resolution target. The zoom-in picture shows the detailed interferometric pattern of this hologram. (c) Spatial frequency spectrum of (b). (d) Time-resolved multi-contrast imaging of ultrafast laser-induced damage in a mica lamina sample.