title: Mask-Free Patterning of High-Conductivity Metal Nanowires in Open Air by Spatially Modulated Femtosecond Laser Pulses.
abstract: A novel high-resolution nanowire fabrication method is developed by thin-film patterning using a spatially modulated femtosecond laser pulse. Deep subwavelength (≈1/13 of the laser wavelength) and high conductivity (≈1/4 of the bulk gold) nanowires are fabricated in the open air without using masks, which offers a single-step arbitrary direct patterning approach for electronics, plasmonics, and optoelectronics nanodevices.
authors.affiliation: Laser Micro/Nano-Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Andong
authors.initials: A
authors.lastname: Wang
authors.affiliation: Laser Micro/Nano-Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Lan
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Laser Micro/Nano-Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Li
authors.affiliation: Laser Micro/Nano-Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Laboratory of Organic Nanophotonics and Key Laboratory of Photochemical Convention and Functional Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Xianzi
authors.initials: X
authors.lastname: Dong
authors.affiliation: Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Liangti
authors.initials: L
authors.lastname: Qu
authors.affiliation: Laboratory of Organic Nanophotonics and Key Laboratory of Photochemical Convention and Functional Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Xuanming
authors.initials: X
authors.lastname: Duan
authors.affiliation: Department of Electrical Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588-0511, USA.
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Lu
keywords: femtosecond lasers; nanowires; spatially modulated beams; thin film ablation