Stimulated emission in dendrimer-doped polymer waveguides

Akira Otomo, Sonoko Otomo, Shiyoshi Yokoyama, Shinro Mashiko

研究成果: ジャーナルへの寄稿Conference article

6 引用 (Scopus)

抄録

Stimulated emission was studied in dendrimer-doped polymer waveguides. A supernarrowing laser spectrum was observed without using any resonator mirrors, due to the moderate scattering caused by densely doped dendrimer aggregates in a polymer waveguide. At the optimum operation level, the spectral linewidth was found to be 0.55 nm, which was limited by the resolution of the spectrograph used. Weak scattering from the aggregated dendrimers in the host polymer matrix with gain was responsible for the photon localization. However, in contrast to conventional random lasers with strong scattering, weak scattering enables the long amplification path through the waveguide producing a directional beam and a supernarrowing spectrum. The dependence of supernarrowing lasing behavior on the density of the scattering moiety was studied by changing the dendrimer doping ratios in the polymer matrix.

元の言語英語
ページ(範囲)278-283
ページ数6
ジャーナルThin Solid Films
393
発行部数1-2
DOI
出版物ステータス出版済み - 8 1 2001
イベント4th International Conference on Nano-Molecular Electronics - Kobe, 日本
継続期間: 12 5 200012 7 2000

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Dendrimers
Stimulated emission
dendrimers
stimulated emission
Polymers
Waveguides
Scattering
waveguides
polymers
scattering
Polymer matrix
Spectrographs
Lasers
matrices
Linewidth
spectrographs
lasers
Amplification
lasing
Resonators

All Science Journal Classification (ASJC) codes

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

これを引用

Stimulated emission in dendrimer-doped polymer waveguides. / Otomo, Akira; Otomo, Sonoko; Yokoyama, Shiyoshi; Mashiko, Shinro.

:: Thin Solid Films, 巻 393, 番号 1-2, 01.08.2001, p. 278-283.

研究成果: ジャーナルへの寄稿Conference article

Otomo, Akira ; Otomo, Sonoko ; Yokoyama, Shiyoshi ; Mashiko, Shinro. / Stimulated emission in dendrimer-doped polymer waveguides. :: Thin Solid Films. 2001 ; 巻 393, 番号 1-2. pp. 278-283.
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