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

20 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

Fingerprint

Optical gain
Dye lasers
Microcavities
Photopolymerization
dye lasers
Dendrimers
Photons
dendrimers
Fabrication
microstructure
Microstructure
fabrication
Lasers
photons
lasers
Photoexcitation
high gain
Linewidth
Energy transfer
resins

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Fabrication of three-dimensional microstructure in optical-gain medium using two-photon-induced photopolymerization technique. / Yokoyama, Shiyoshi; Nakahama, Tatsuo; Miki, Hideki; Mashiko, Shinro.

In: Thin Solid Films, Vol. 438-439, 22.08.2003, p. 452-456.

Research output: Contribution to journalConference article

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