Super-stealth laser cutting with nanometre precision and aspect ratios of the order of 1,000 is demonstrated. The technique is applicable to a broad variety of transparent solids, including silica, lithium tantalate, lithium niobate, YAG, Ce:YAG, Ti:sapphire and β-Ga2O3.
- Zhen-Ze Li
- Hua Fan
- Hong-Bo Sun