For 20 years, nanoscale 3D printing has been based on two-photon absorption, requiring expensive pulsed lasers. Now, via a two-step absorption process, such printing has been demonstrated using a low-cost, low-power continuous-wave laser diode, showing the potential for dramatic cost reductions in 3D nanoprinting.

中文翻译：

---

光化学使 3D 纳米打印民主化

20 年来，纳米级 3D 打印一直基于双光子吸收，需要昂贵的脉冲激光器。现在，通过两步吸收过程，已经使用低成本、低功率连续波激光二极管证明了这种打印，显示了 3D 纳米打印显着降低成本的潜力。