Open AccessPrinting of metallic 3D micro-objects by laser induced forward transfer
Author(s) -
Michael Zenou,
Zvi Kotler
Publication year - 2016
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.24.001431
Subject(s) - materials science , optics , fabrication , laser , drop (telecommunication) , nanotechnology , transfer printing , 3d printing , optoelectronics , computer science , composite material , medicine , telecommunications , physics , alternative medicine , pathology
Digital printing of 3D metal micro-structures by laser induced forward transfer under ambient conditions is reviewed. Recent progress has allowed drop on demand transfer of molten, femto-liter, metal droplets with a high jetting directionality. Such small volume droplets solidify instantly, on a nanosecond time scale, as they touch the substrate. This fast solidification limits their lateral spreading and allows the fabrication of high aspect ratio and complex 3D metal structures. Several examples of micron-scale resolution metal objects printed using this method are presented and discussed.