Handling and assembling of low-density foam structures fabricated by two-photon polymerization

O. Stein, Y. Liu, J. Streit, R. Cahayag, Y. Lu, N. Petta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations


Low-density foam targets for laser induced shock wave propagation experiments were produced via laser direct writing from polymeric materials. These targets were designed with dimensions of 2.0X0.25X0.3mm with a density of 100mg/cm3 and included a fully polymerized ablation layer, 15μm thick, written contiguously with the low density material in a single fabrication step. We developed a unique protocol in order to assist in the release and harvest of the foam targets from the glass substrate on which they were fabricated. The fabrication process, as well as the assembly and handling of these delicate brittle samples is described in this paper, demonstrating the flexibility, versatility and efficiency of two photon polymerization as fabrication technique that may complement conventional approaches for low density materials fabrication. An ongoing research effort is being conducted in order to reduce to the minimum the content of stitching defects between the target's building blocks.

Original languageEnglish (US)
Title of host publicationNanoengineering
Subtitle of host publicationFabrication, Properties, Optics, and Devices XIV
EditorsEva M. Campo, Louay A. Eldada, Elizabeth A. Dobisz
ISBN (Electronic)9781510611658
StatePublished - 2017
EventNanoengineering: Fabrication, Properties, Optics, and Devices XIV 2017 - San Diego, United States
Duration: Aug 9 2017Aug 10 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherNanoengineering: Fabrication, Properties, Optics, and Devices XIV 2017
Country/TerritoryUnited States
CitySan Diego


  • 2PP
  • Laser induced shock
  • Low density material
  • high energy density physics
  • target fabrication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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