Fig. 4

SEM images and photographs of SENTL-transferred nanostructures on various receiver substrates, including a a PDMS pad, b PI film, c PTFE film, d 10-μm diameter and 2-μm height Si micropost, e glass ball, f plastic optical fiber, g inner and outer wall of a glass vial, and h 125-μm diameter single-mode optical fiber. Scale bars: 500 nm (a–c), 10 μm (d), and 1 cm (e–h, insets in a–c)