Fig. 5
From: Confocal nonlinear optical imaging on hexagonal boron nitride nanosheets
Time-resolved acFE-CARS (ω1, 910 nm; ω2, 1040 nm; ω3, 455 nm) a xy- and b z-directional mean filtered images of hBN flakes. c z-directional time-resolved ND-CARS images for an arbitrary region. d Time-resolved cFE-CARS dynamics from xy- and z-directional images of hBN flakes (bg, background). A logarithmic scale is used for a–c. The images in the green dashed boxes are rescaled to represent re-raised signals while maintaining the background (the empty region) level. The green arrow in a indicates the polarization direction. The white scale bars correspond to 2 μm