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SEM images of LIG on the polyimide film; scale bars are 50 microns in length. (A) LIG sample at 200 micron horizontal field width (HFW) showing a porous structure created at 2.10 W and 15 line/mm (D5). (B) LIG sample at 200 micron horizontal field width (HFW) showing a porous structure created at 1.40 W and 20 line/mm (E3).
