Intermolecular coupling enhancement of the molecular hyperpolarizability in multi-chromophoric dipolar dendrons

Shiyoshi Yokoyama, Akira Otomo, Shinro Mashiko

研究成果: ジャーナルへの寄稿Conference article

抄録

Nonlinear optical dendritic macromolecules, called `azobenzene dendrons', having a branching structure modified with a second-order nonlinear optical chromophore has been synthesized. An electron donor and acceptor azobenzene chromophore having a large molecular hyperpolarizability of β0 = 150E-30 esu, was chosen. The electronic structure of synthesized dendrons, which were expected to become dipolar due to their intermolecular attractive interaction, was proven by second-order nonlinear optical properties. The molecular hyperpolarizabilities of azobenzene dendrons were measured by the hypr-Rayleigh scattering technique. The highest molecular hyperpolarizability was found to be 3,010E-30 esu for an azobenzene dendron having 15 chromophoric unit, where each chromophore coherently contribute to the second harmonic generation. This level of the molecular hyperpolarizability was much larger than that for a monomeric azobenzene chromophore.

元の言語英語
ジャーナルMaterials Research Society Symposium - Proceedings
598
出版物ステータス出版済み - 12 1 2000
イベントElectrical, Optical, and Magnetic Properties of Organic Solid-State Materials V - Boston, MA, USA
継続期間: 11 29 200012 3 2000

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Dendrimers
Azobenzene
chromophores
Chromophores
augmentation
Rayleigh scattering
macromolecules
harmonic generations
Harmonic generation
Macromolecules
Electronic structure
electronic structure
optical properties
Optical properties
azobenzene
Electrons
electrons
interactions

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Intermolecular coupling enhancement of the molecular hyperpolarizability in multi-chromophoric dipolar dendrons. / Yokoyama, Shiyoshi; Otomo, Akira; Mashiko, Shinro.

:: Materials Research Society Symposium - Proceedings, 巻 598, 01.12.2000.

研究成果: ジャーナルへの寄稿Conference article

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