Figure 1.

Overview of the compact laser annealing setup. (a) Cutaway view of the optical head shaping the beam into a narrow line with a connected optical fiber. The beam is projected onto a sample inside a low-profile vacuum chamber mounted on a linear translation stage. (b) Block copolymer thin-film sample on a silicon substrate capped with a layer of transparent PDMS undergoing laser annealing in soft-shearing mode (SS-LZA). The line-shaped beam is continuously rastered across the sample with a PDMS cap acting as a shear-inducing element. (c) Metallic platinum nanowires on Si obtained by templated synthesis in the aligned cylindrical PS-b-P2VP diblock copolymer film after 8 cycles of photothermal annealing at 0.32 mm s^–1 with 24 W beam power.