Holographic multi-focus 3D two-photon polymerization with real-time calculated holograms

Gaszton Vizsnyiczai, L. Kelemen, P. Ormos

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Two-photon polymerization enables the fabrication of micron sized structures with submicron resolution. Spatial light modulators (SLM) have already been used to create multiple polymerizing foci in the photoresist by holographic beam shaping, thus enabling the parallel fabrication of multiple microstructures. Here we demonstrate the parallel two-photon polymerization of single 3D microstructures by multiple holographically translated foci. Multiple foci were created by phase holograms, which were calculated real-time on an NVIDIA CUDA GPU, and displayed on an electronically addressed SLM. A 3D demonstrational structure was designed that is built up from a nested set of dodecahedron frames of decreasing size. Each individual microstructure was fabricated with the parallel and coordinated motion of 5 holographic foci. The reproducibility and the high uniformity of features of the microstructures were verified by scanning electron microscopy.

Original languageEnglish
Pages (from-to)24217-24223
Number of pages7
JournalOptics Express
Volume22
Issue number20
DOIs
Publication statusPublished - Oct 6 2014

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polymerization
microstructure
photons
light modulators
fabrication
photoresists
scanning electron microscopy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Holographic multi-focus 3D two-photon polymerization with real-time calculated holograms. / Vizsnyiczai, Gaszton; Kelemen, L.; Ormos, P.

In: Optics Express, Vol. 22, No. 20, 06.10.2014, p. 24217-24223.

Research output: Contribution to journalArticle

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