Fig. 5.

Angle-scanning illumination. (a) k-space visualization of illumination schemes. k-space volume coverage of $\tilde{\chi }\left(k_x,k_y,k_z\right)$ in (b) single oblique angle illumination, (c) circular scanning, and (d) full aperture scanning cases. All graphs are depicted in a k_x =0 slice to emphasize the axial coverage. The same parameters as in Fig. 4(b) were applied in this figure.