Fig. 4

I SEM images of nanowire grid polarizer fabricated by nanoimprint lithography on a flexible before and after metal deposition. a Top and b 40^o tilt view of the imprinted grating in polycarbonate. c Top and d 40^o tilt view after Al deposition [7]. II SEM image of photonic crystal patterned onto the transparent ITO electrode of an LED by nanoimprint lithography for improved light output [38]. III a schematic and b SEM image of microlens arrays of varying shape patterned by nanoimprint lithography [57]