Astra Optics | Pioneering a New Era of Nanoscale 3D Printing
Astra Optics Limited, a pioneering startup spun out from The Chinese University of Hong Kong, is redefining the possibilities in nanoscale fabrication. Building upon the team’s groundbreaking research published in Science in 2019 [1] and 2022 [2], Astra Optics launched the world’s first multi-material nanoscale 3D manufacturing platform — the Femtosecond Projection NanoPrinter. This innovation […]
Science Explained | Introduction to Spatiotemporal Focusing Technology
Two-photon polymerization (TPP) has become a key technology in the field of 3D nanofabrication, thanks to its high resolution—down to the sub-100-nanometer scale. However, traditional TPP printing systems typically rely on point-by-point serial scanning, which severely limits throughput and poses significant challenges for industrial adoption. In contrast, Femtosecond Projection Printing (FP)—a method based on spatiotemporal […]
