Figure 7
From: Sub-Diffraction Limited Writing based on Laser Induced Periodic Surface Structures (LIPSS)
SEM images of nanostructure formation process.
(a) Forming at the beginning of the nanostructure which produces some random ripples until the stable interference is generated. (b) Well aligned nanogrooves at the termination end of the nanostructure, the side nanogrooves are behind of the center nanogroove. The arrow E indicates the laser polarization direction, arrow W indicates the writing direction, and all scale bars are 400 nm.
