Intermolecular coupling enhancement of the molecular hyperpolarizability in NLO dendrons

Shiyoshi Yokoyama, S. 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, were synthesized by adding 1-15 azobenzene branching units as second-order nonlinear optical chromophore and placing aliphatic chains at the chain end. The electronic structure of azobenzene dendrons, which were expected to become dipolar, was proven by second-order nonlinear optical properties. The hyper-Rayleigh scattering result indicated that they had a rod-shaped molecular structure, where chromophoric units were oriented noncentrosymmetrically along the molecular axis and each of units coherently contributed to the second harmonic generation. The first-order molecular hyperpolarizability was 3,010 × 10-30 esu for an azobenzene dendron having 15 azobenzene chromophores. This level of hyperpolarizability was significantly higher than the hyperpolarizability of 150 × 10-30 esu for a momomeric azobenzene chromophore.

元の言語英語
ページ(範囲)47-50
ページ数4
ジャーナルMolecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics
24
発行部数1-2
出版物ステータス出版済み - 12 1 2000
イベントChitose Internatinal Forum on Photonic Sciences - Chitose, 日本
継続期間: 10 12 199910 13 1999

Fingerprint

Dendrimers
Azobenzene
chromophores
augmentation
Chromophores
Rayleigh scattering
macromolecules
harmonic generations
molecular structure
rods
electronic structure
optical properties
Harmonic generation
Macromolecules
Molecular structure
Electronic structure
azobenzene
Optical properties

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Condensed Matter Physics

これを引用

@article{7c1e6aa342754d1ab00c7f3e787bfbd1,
title = "Intermolecular coupling enhancement of the molecular hyperpolarizability in NLO dendrons",
abstract = "Nonlinear optical dendritic macromolecules, called azobenzene dendrons, were synthesized by adding 1-15 azobenzene branching units as second-order nonlinear optical chromophore and placing aliphatic chains at the chain end. The electronic structure of azobenzene dendrons, which were expected to become dipolar, was proven by second-order nonlinear optical properties. The hyper-Rayleigh scattering result indicated that they had a rod-shaped molecular structure, where chromophoric units were oriented noncentrosymmetrically along the molecular axis and each of units coherently contributed to the second harmonic generation. The first-order molecular hyperpolarizability was 3,010 × 10-30 esu for an azobenzene dendron having 15 azobenzene chromophores. This level of hyperpolarizability was significantly higher than the hyperpolarizability of 150 × 10-30 esu for a momomeric azobenzene chromophore.",
author = "Shiyoshi Yokoyama and S. Mashiko",
year = "2000",
month = "12",
day = "1",
language = "English",
volume = "24",
pages = "47--50",
journal = "Nonlinear Optics Quantum Optics",
issn = "1543-0537",
publisher = "Old City Publishing",
number = "1-2",

}

TY - JOUR

T1 - Intermolecular coupling enhancement of the molecular hyperpolarizability in NLO dendrons

AU - Yokoyama, Shiyoshi

AU - Mashiko, S.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - Nonlinear optical dendritic macromolecules, called azobenzene dendrons, were synthesized by adding 1-15 azobenzene branching units as second-order nonlinear optical chromophore and placing aliphatic chains at the chain end. The electronic structure of azobenzene dendrons, which were expected to become dipolar, was proven by second-order nonlinear optical properties. The hyper-Rayleigh scattering result indicated that they had a rod-shaped molecular structure, where chromophoric units were oriented noncentrosymmetrically along the molecular axis and each of units coherently contributed to the second harmonic generation. The first-order molecular hyperpolarizability was 3,010 × 10-30 esu for an azobenzene dendron having 15 azobenzene chromophores. This level of hyperpolarizability was significantly higher than the hyperpolarizability of 150 × 10-30 esu for a momomeric azobenzene chromophore.

AB - Nonlinear optical dendritic macromolecules, called azobenzene dendrons, were synthesized by adding 1-15 azobenzene branching units as second-order nonlinear optical chromophore and placing aliphatic chains at the chain end. The electronic structure of azobenzene dendrons, which were expected to become dipolar, was proven by second-order nonlinear optical properties. The hyper-Rayleigh scattering result indicated that they had a rod-shaped molecular structure, where chromophoric units were oriented noncentrosymmetrically along the molecular axis and each of units coherently contributed to the second harmonic generation. The first-order molecular hyperpolarizability was 3,010 × 10-30 esu for an azobenzene dendron having 15 azobenzene chromophores. This level of hyperpolarizability was significantly higher than the hyperpolarizability of 150 × 10-30 esu for a momomeric azobenzene chromophore.

UR - http://www.scopus.com/inward/record.url?scp=0034453995&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034453995&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0034453995

VL - 24

SP - 47

EP - 50

JO - Nonlinear Optics Quantum Optics

JF - Nonlinear Optics Quantum Optics

SN - 1543-0537

IS - 1-2

ER -