Direct Laser Writing of Low‐Density Interdigitated Foams for Plasma Drive Shaping

• DOI: 10.1002/adfm.201702425
• Publication Date: 2017-09-27T06:34:06Z
• Authors: James S. Oakdale; Raymond F. Smith; Jean‐Baptiste Forien; William L. Smith; Suzanne J. Ali; Leonardus B. Bayu...; Trevor M. Willey; Jianchao Ye; Anthony W. van Bu...; Matthew A. Worthi...; Shon T. Prisbrey; Hye‐Sook Park; Peter A. Amendt; Theodore F. Baumann; Juergen Biener
• Keywords: Micrometer; Piston (optics); Image stitching

Abstract Monolithic porous bulk materials have many promising applications ranging from energy storage and catalysis to high density physics. High resolution additive manufacturing techniques, such as direct laser writing via two photon polymerization (DLW‐TPP), now enable the fabrication of highly microlattices with deterministic morphology control. In this work, DLW‐TPP is used print millimeter‐sized foam reservoirs (down 0.06 g cm −3 ) tailored density‐gradient profiles, where varied by over an order magnitude (for instance 0.6 along a length <100 µm. Taking full advantage technology, however, multiscale design problem that requires detailed understanding how different scales, molecular level macroscopic dimensions, affect each other. The these 3D‐printed foams based on brickwork arrangement 100 × 16 µm 3 log‐pile blocks constructed sub‐micrometer scale features. A block‐to‐block interdigitated stitching strategy introduced for obtaining uniformity at all scales. Finally, are shape plasma‐piston drives during ramp‐compression targets under conditions created OMEGA Laser Facility.