fig3

Figure 3. Laser processing fabrication technology on the inner and outer surfaces of micro-cylindrical objects. (A) Customizable path processing on the outer surface of a micro-cylindrical object via laser ablation. Reproduced with permission^[82]. Copyright 2011, John Wiley and Sons; (B) Laser scanning processing on the inner surface of a micro-cylindrical object. Reproduced with permission^[17]. Copyright 2014, IOP Publishing on behalf of the Japan Society of Applied Physics.