Figure 7
From: Fabrication of silver helix microstructures in a large area by a two-photon absorption DLW method
(a) Programmed pattern of 9 helical structures. (b) SEM image of 9 practically fabricated helical structures using the programmed pattern in (a). (c,d) SEM image of the helical structures fabricated in a wide area by repeating DLW of the 1900 helical structures (38 line × 50 line).
