Symmetry and Second-Order Susceptibility of Hemicyanine Monolayer Studied by Surface Second-Harmonic Generation
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概要
- 論文の詳細を見る
Theoretical expressions for the surface second-harmonic generation are given for some particular combinations of polarizers. Simulated results are displayed and are compared with the experiments made for the hemicyanine monolayer on the water surface and on a substrate. The main results are as follows. (1) The formation of the H-aggregates on water, which strongly depends on the compression process, breaks C_<∞v> symmetry, and the deposition onto a substrate gives rise to a symmetry change of the H-aggregates. (2) The average molecular tilt angles of pure and mixed hemicyanine monolayers with arachidic acid scarcely change throughout the compression process, unless the H-aggregates are formed. (3) The frequency dispersion of the dielectric constant in the monolayer should not be neglected to obtain correct susceptibility tensor elements.
- 社団法人応用物理学会の論文
- 1991-05-15
著者
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梶川 浩太郎
東工大・工
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KAJIKAWA Kotaro
Tokyo Institute of Technology, Department of Organic and Polymeric Materials
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Takezoe Hideo
Tokyo Institute Of Technology Department Of Organic And Polymeric Materials
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Fukuda Asuo
Department Of Kansei Engineering Faculty Of Textile Science And Technology Shinshu University
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Fukuda Atsuo
Tokyo Institute Of Technology Department Of Bioengineering
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