Here's a figure comparing the hole left in a metal surface with normal and femto-second pulses. The difference is quite stark. https://www.researchgate.net/fi

Here's a figure comparing the hole left in a metal surface with normal and femto-second pulses. The difference is quite stark. https://www.researchgate.net/figure/SEM-image-of-the-substrates-after-nanosecond-and-femtosecond-laser-ablation-respectively_fig6_371746088 https://www.researchgate.net/figure/SEM-image-of-the-substra...