Fabrication of three-dimensional microstructure in optical-gain medium using two-photon-induced photopolymerization technique

Shiyoshi Yokoyama, Tatsuo Nakahama, Hideki Miki, Shinro Mashiko

Research output: Contribution to journalConference article

21 Citations (Scopus)

Abstract

An approach using a laser-dye-doped dendrimer as a two-photon-induced photocurable resin was demonstrated for the fabrication of a three-dimensional microstructure. A dendrimer can encapsulate laser-dye and, as a result, increases its concentration up to 4 wt.% with limited energy transfer during the photopolymerization process. Confocal microscopic images showed a polymerized structure with a precise control of dimensions and spatial resolution within a submicrometer-scale. We fabricated a polymeric solid-state microcavity, which consisted of integrated strips arranged in a layer-by-layer structure. The microcavity had a periodic variation in the refractive index, which gave rise to Bragg reflection for laser feedback. Laser emission with a spectral linewidth of 0.15 nm was measured in the microcavity under optical excitation. This laser emission is attributed both to the distributed Bragg reflection and to the high gain of a polymeric medium containing a high concentration of laser-dye.

Original languageEnglish
Pages (from-to)452-456
Number of pages5
JournalThin Solid Films
Volume438-439
DOIs
Publication statusPublished - Aug 22 2003
Externally publishedYes
EventThe 5th International Conference on Nano-Molecular Electronics - Kobe, Japan
Duration: Dec 10 2002Dec 12 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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