Open AccessFemtosecond laser direct writing of metallic microstructures by photoreduction of silver nitrate in a polymer matrix
Author(s) -
Shoji Maruo,
Tatsuya Shimoda
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.001174
Subject(s) - materials science , femtosecond , microstructure , laser , silver nitrate , optics , optoelectronics , electrical resistivity and conductivity , composite material , nuclear chemistry , chemistry , physics , electrical engineering , engineering
Continuous silver microstructures were produced by three-dimensional (3-D) direct laser writing using a femtosecond-pulsed laser beam with polyvinylpyrrolidone (PVP) films containing silver ions. The lines drawn by scanning a tightly focused laser beam ranged from 200 nm to 1.7 microm. Using a sample solution of high density of silver nitrate, a continuous silver line with a resistivity of 3.48 x 10(-7) ohms m was produced. Not only 3-D microstructures such as pyramidal models but also hybrid microstructures comprising polymer and silver lines were demonstrated. The 3-D direct laser writing of metallic microstructures has potential for application to 3-D electrical wiring of electronic devices and MEMS devices.