There is a older (commercialized [1]) process called two-photon photo-polymerization, which can also create mind blowing nanoscale 3D parts [2]. Although limite

There is a older (commercialized [1]) process called two-photon photo-polymerization, which can also create mind blowing nanoscale 3D parts [2]. Although limited in choose of materials it can print, still pretty cool and sometimes can find applications in photonics. [1] https://www.nanoscribe.com/en/ https://www.nanoscribe.com/en/ [2] https://www.epfl.ch/research/facilities/cmi/wp-content/uploads/2019/12/R2D29.jpg https://www.epfl.ch/research/facilities/cmi/wp-content/uploa...