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| University of Cambridge > Engineering Department > Photo competition |
 Kun Li: 'Laser drilled micro-sized hole array' |
| Kun Li 'Laser drilled micro-sized hole array' The photo was taken with optical microscope, no modification is made. Holes were drilled with low power pulsed fibre laser on Stainless Steel at 500kHz repetition rate, it took 0.1 ms (50 pulses) to drill each hole. Each hole is about 30um in diameter, and centre to centre distance is 50um. |
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