Multi-photon lithography (MPL) 3D
nanoprinting technology, renowned for its 3D processing capability and
nanoscale resolution beyond the diffraction limit, has garnered significant
attention in the micro/nano-additive manufacturing field. However, its broader
adoption in industrial production and applications has been hindered by
limitations such as relatively slow processing speed and restricted material
formability and functionality. This paper presents the latest advancements in
MPL, with a focus on analyzing optical methods to enhance the processing speed
of scanning and projection techniques. It further explores the formability and
functionality of commonly used materials such as organic polymers, inorganic
substances, and composites. Ultimately, breakthroughs in productivity, cost,
materials, and cross-scale processing are expected to drive MPL 3D nanoprinting
toward large-scale production and applications.
