Keynote speaker

Following a brief introduction into 3D laser printing on the micrometer and nanometer scale based on two-photon absorption [1,2], I will emphasize recent progress of my group in this field. This includes replacing two-photon absorption by one-color two-step absorption, allowing to use compact and inexpensive continuous-wave lasers rather than femtosecond laser systems [3]. Using two-color two-step absorption combined with the idea of light-sheet laser printing [1,4], we have more recently achieved print rates approaching 10^7 voxels/s. Aligning the director of liquid-crystal elastomers during the 3D laser printing process yields 3D micro-architectures that can be actuated by light from an LED [5]. Finally, I discuss recent [6] progress in regard to laser printing of functional microelectronic devices such as diodes, memristors, and transistors.