Abstract

Three-dimensional (3D) laser nanoprinting with high resolution and low cost is highly desirable for fabricating arbitrary 3D structures with fine feature size. In this work, we use a 405-nm integrated fiber-coupled continuous wave (cw) laser diode to establish an easy-to-build 3D nanoprinting system based on two-step absorption. Two-dimensional (2D) gratings with a sub-150-nm period and 3D woodpile nanostructures with a lateral period of 350 nm have been printed at a low speed. At a faster scan velocity of 1000 µm/s, 2D gratings with sub-200-nm resolution and sub-50-nm linewidth can still be fabricated with laser power less than 1 mW. The two-step absorption of the used benzil initiator enables us to use a second cw laser with 532-nm wavelength to enhance the polymerization with sub-100-nm feature size when starting with insufficient 405-nm laser power, which possess the potential to find applications in high-speed high-resolution parallel-writing and in situ manipulation.

© 2023 Optica Publishing Group

3D nanoprinting for fiber-integrated achromatic diffractive lens

Minfei He, Xiaoming Shen, Xin Liu, Cuifang Kuang, and Xu Liu
Opt. Lett. 48(20) 5221-5224 (2023)

3D direct laser writing using a 405  nm diode laser

Patrick Mueller, Michael Thiel, and Martin Wegener
Opt. Lett. 39(24) 6847-6850 (2014)

Fiber-based high-speed 3D schlieren imaging

Xiang Li, Qingchun Lei, Wei Bao, Xuesong Li, and Wei Fan
Opt. Lett. 48(15) 4081-4084 (2023)

Two-photon 3D printing diaphragm-integrated ring waveguide coupler for ultrasound detection

Heming Wei, Kexuan Sun, Yan Wei, Mengshi Zhu, Haiyan Zhang, Fufei Pang, Tingyun Wang, and Sridhar Krishnaswamy
Opt. Lett. 48(16) 4412-4415 (2023)

Hybrid fiber–solid-state laser with 3D-printed intracavity lenses

Simon Angstenberger, Pavel Ruchka, Mario Hentschel, Tobias Steinle, and Harald Giessen
Opt. Lett. 48(24) 6549-6552 (2023)