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. 2016 Sep 2;10(5):054101. doi: 10.1063/1.4962294

FIG. 4.

FIG. 4.

Topology of the crystalline silk film laser ablated (a) and subsequently water washed (b). Laser exposure conditions: pulse energy Ep = 22 nJ, pulse density 100 pulses/μm (20 pulses overlapping) at a repetition rate of 100 kHz, NA = 0.26 lens.