Photonic crystal structures with submicrometer spatial resolution achieved by high power femtosecond laser-induced photopolymerization

Hong Bo Sun, Ying Xu, Masafumi Miwa, Shigeki Matsuo, Hiroaki Misawa

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

We demonstrate in this paper a fabrication of three-dimensional microstructures using photopolymerization of resin by two-photon absorption. When a tightly focused laser beam was scanned in a light-curling liquid, solidified rods were formed following the trace of the scanning. If the solidification was arranged to occur along the frame of a microstructure, a designed spatial pattern would be transformed into material object. Due to a quadratic dependence of photopolymerization rate on the laser pulse energy, the size of solidified voxels was controlled down to submicrometer order. Infrared transmission measurement exhibited pronounced band gap effects from thus-fabricated photonic crystal structures.

Original languageEnglish
Pages (from-to)122-130
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3888
DOIs
Publication statusPublished - 2000 Jan 1
EventHigh-Power Lasers in Manufacturing - Osaka, Jpn
Duration: 1999 Nov 11999 Nov 5

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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