Theoretical study of photo-functions of polymer system with nanoscale polarization orientational structure

纳米级偏振取向结构聚合物体系光功能的理论研究

• 批准号: 16540286
• 负责人: ISHIHARA Hajime
• 金额: $ 2.5万
• 依托单位: Osaka Prefecture University (2005)Osaka University (2004)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16540286/
• 关键词: Polymer; Frenkel Excitons; Spiral molecules; Optical Manipulation; Quantum Dots; Entangled-photon pairs; 螺旋分子; 環状分子; 非線形光学応答

In the first half of the project, we have investigated novel photo-functions arising from nanoscale polarization orientational structure, considering mainly the following two kind of systems.1.We theoretically study linear and nonlinear optical responses of a thin film that consists of linear chains confining spiral-type Frenkel excitons. The peculiarities of this system appear in various properties such as the selection rule of optical transitions, complex modes structure of exciton-radiation coupled system, and polarization characteristics of the nonlinear signal. These results indicate that the nanoscale orientation structure of polarizations can be a significant degree of freedom to design novel photo-functions.2.Considering the circular polarization structure seen in the molecular systems of photosynthesis center, we investigated the optical properties of assembly of the ring type molecules. As a result, we have revealed that the energy transfer probability when the nonradiative m … More odes are excited with the evanescent field is much larger than that when the radiative modes are excited. This shows the great possibilities of this system as novel photo-functional materials.In the last half, we theoretically studied the characteristic properties of the optically induced force (OIF) between two semiconductor nano-particles (SNPs) irradiated by an electronic resonant light, assuming that they are floating in the fluid medium. As a result, we have revealed that the bonding state (BS) and the antibonding state (AS) in the polaritonic molecule (PM) can be excited if two SNPs exist near each other. Each state is selectively excited by an incident light with a particular polarization. The attractive OIF arises when BS is excited, while the repulsive OIF arises when AS is excited. This finding will open the way to mechanically control the collective motion of assembly of SNPs manipulating the nanoscale spatial structures of the radiation field through the resonant excitation. Less

在该项目的上半年，我们研究了纳米级极化取向结构引起的新型照片功能，主要考虑到以下两种系统。1。我们的理论研究线性和非线性光学响应，这些薄膜由线性链组成的薄膜组成，限制了螺旋型Frenkel Iccitons。该系统的特殊性出现在各种属性中，例如光学转变的选择规则，激子辐射耦合系统的复杂模式结构以及非线性信号的极化特性。这些结果表明，极化的纳米级取向结构可能是设计新型光合作用的重要自由度。2。在光合作用中心的分子系统中看到的圆形极化结构，我们研究了环型分子组装的光学特性。结果，我们已经揭示了当非辐射M…更多的ODES激发诱发场时的能量传递概率比辐射模式被激发时大得多。这显示了该系统的巨大潜力作为新型的光功能材料。在下半年，我们从理论上研究了两个半导体纳米粒子（SNP）在电子共振光中辐射的两个半导体纳米粒子（SNP）之间的特性，假设它们在流体介质中漂浮。结果，我们已经揭示了如果两个SNP彼此相近，则可以激发极化分子（PM）中的键合状态（BS）和抗抑制状态（AS）。每个状态都会通过具有特定极化的入射光选择性激发。当BS激发BS时，会产生吸引人的OIF，而当令人兴奋的情况下，出现了排斥的OIF。这一发现将开辟道路，以机械地控制通过谐振兴奋的辐射场的纳米级空间结构的SNP的集体运动。较少的

项目成果

Interaction between Radiation and a single excitonic state Widely extended in a shell structure

辐射与单激子态之间的相互作用在壳结构中广泛延伸

• 发表时间: 2005
• 期刊: Proceedings of Lasers and Electro-Optics European Quantum Electronics Conference
• 作者: T.Kaneno;H.Ajiki;H.Ishihara
• 通讯作者: H.Ishihara

Cavity-QED Effect on Nonlinear Spectra via Biexciton of a Quantum Dot

量子点双激子对非线性光谱的腔 QED 效应

• 发表时间: 2006
• 期刊: Proc. SPIE Conference Series (印刷中)
• 作者: T. Suga;et al.;H.Ajiki
• 通讯作者: H.Ajiki

Degenerate four-wave-mixing of spiral-type excitons

螺旋型激子的简并四波混频

• 发表时间: 2004
• 期刊: Nonlinear Optics : Materials, Fundamentals and Aoolications on CDROM (The Optical Society of America, Washington, DC,2004)
• 作者: H.Ishihara;H.Mifune
• 通讯作者: H.Mifune

Optically-induced force between nano particles irradiated by electronic resonant light

电子共振光照射下纳米颗粒之间的光感生力

• 发表时间: 2005
• 期刊: Journal of Luminescence 112
• 作者: T.Iida;H.Ishihara
• 通讯作者: H.Ishihara

Optically-induced mechanical interaction between semiconductor quantum dots under an electronic resonance condition

电子共振条件下半导体量子点之间的光致机械相互作用

• 发表时间: 2005
• 期刊: Physica E 26
• 作者: S.Fujiwara;M.Hashimoto;T.Itoh;H.Nakamura;長田 俊人;K.Kobayashi;T.Osada;E.Ohmichi;N.Hanasaki;N.Hanasaki;T.Osada;E.Ohmichi;M. Nagira;K. Shimada;X. Y. Cui;K. Terai;Mitsuharu Higashiguchi;T. Saitoh;S. Kaneyoshi;N. Tobita;Y. Miura;J. F. Douglas;Y. Takata;M. Higashiguchi;X. Y. Cui;M. Nagira;Shin-ichi Fujimori;H. Iwasawa;M. Arita;M. Arita;T. Hirahara;T. Kinoshita;H.Negishi;S.Negishi;K.Shimada;R.Eguchi;S-i.Fujimori;K.Shimada;X.Y.Cui;M.Higashiguchi;Y.Miura;M.Sawada;S.Negishi;Y.T.Cui;T.Yokoya;島田賢也;K.Shimada;M.Higashiguchi;A.Ino;K.Yaji;Y.Takata;K.Mimura;Y.Takeda;H.Iwasawa;X.Y.Cui;R.Eguchi;H.Shiozawa;T.Saitoh;K.Iori;K.Shimada;Y.Takata;H.Iwasawa;M.Higashiguchi;島田賢也;K. Shimada;島田賢也;K. Shimada;K. Shimada (Edited by S. Hufner)共著;M.Ashida;K.Inaba;T.Iida;K.Miyajima;T.Iida
• 通讯作者: T.Iida