Figure 9
From: Ultrafast evolution of electric fields from high-intensity laser-matter interactions

Signal detection. (a) The electric field (dashed arrows) impinges on the EOS crystal (yellow square) inducing electro-optic effect. (b) The linearly polarized probe laser (red ellipse) simultaneously crosses the crystal with an angle, spanning an overall region equal to its transverse spot size (red dashed circle). (c) While the charge spreads on target, the electric field source grows in size covering a larger area. (d) The probe polarization is locally modulated (red rectangle, rotated by θ s ) when the probe laser temporally overlaps the radiated pulse.