Synthesis of Polymers and Oligomers for Nonlinear Optical Activity

非线性光学活性聚合物和低聚物的合成

基本信息

  • 批准号:
    8815508
  • 负责人:
  • 金额:
    $ 25.48万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    1988
  • 资助国家:
    美国
  • 起止时间:
    1988-12-15 至 1991-11-30
  • 项目状态:
    已结题

项目摘要

By optimizing electron delocalization and intramolecular charge transfer, polymers yielding third order nonlinear optical susceptibilities in excess of 10-9 esu have been prepared as thin (1 micron) films. Figures of merit as high as 104 have been obtained for pristine materials. Doping (intermolecular charge transfer) yields even larger values in some cases. Ladder and penylpolyene materials prepared in preliminary studies also exhibit doping-induced visual transparency, i.e., bleaching of the pi-pi* interband transition and accompanying appearance of intraband (polaron/bipolaron) transitions. Electron-donating and withdrawing substituents are observed to stabilize these mid-gap state species. The reactivity of delocalized pi electron systems with molecular oxygen has been investigated and the effect of interruption of electron delocalization upon nonlinear optical activity has been demonstrated. This research focues upon further development of polymers, copolyers, and composite materials for enhanced nonlinear optical activity. Particular attention is paid to the development of air-stable materials and to correlation of data obtained for model compounds (oligomers) and polymers. Copolymers and composites of linear and nonlinear optical materials will be developed. Components will be so chosen that indices of refraction are matched at low light intensities but are mismatched at high intensities.
通过优化电子离域和分子内电荷转移,制备出了三阶非线性光学磁化率超过10-9 esu的聚合物薄膜(1微米)。原始材料的质量值高达104。掺杂(分子间电荷转移)在某些情况下产生更大的值。初步研究中制备的梯状和苯基多烯材料也表现出掺杂诱导的视觉透明度,即pi-pi*带间跃迁的漂白和带内(极化子/双极化子)跃迁的伴随出现。观察到供电子和吸电子取代基稳定了这些中隙态物质。研究了离域pi电子系统与分子氧的反应性,并证明了电子离域中断对非线性光学活性的影响。本研究的重点是进一步发展聚合物、共聚物和复合材料,以增强非线性光学活性。特别关注空气稳定材料的发展和模型化合物(低聚物)和聚合物获得的数据的相关性。线性和非线性光学材料的共聚物和复合材料将得到发展。元件的选择将使折射率在低光强下匹配,而在高光强下不匹配。

项目成果

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Larry Dalton其他文献

Nanoimprinting for all-polymer electro-optic waveguide devices
全聚合物电光波导器件的纳米压印
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Franciele Henrique;Andreas Maeder;Ülle;G. Finco;David Pohl;Fabian Kaufmann;Marc Reig Escalé;Delwin Elder;Larry Dalton;Rachel Grange
  • 通讯作者:
    Rachel Grange

Larry Dalton的其他文献

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{{ truncateString('Larry Dalton', 18)}}的其他基金

American Chemical Society Symposium Advancing the Chemical Sciences Through Diversity in Participation, August 10-14, 2014
美国化学会研讨会通过参与多样性推进化学科学,2014 年 8 月 10-14 日
  • 批准号:
    1442605
  • 财政年份:
    2014
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Standard Grant
Systematic Theory-Guided Nano-Engineering of Desired Order and Viscoelasticity in Electroactive Dendrimers and Polymers
电活性树枝状聚合物和聚合物中所需有序度和粘弹性的系统理论指导纳米工程
  • 批准号:
    1303080
  • 财政年份:
    2013
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Continuing Grant
Multi-Scale Theory Guided Development of Transformative Polymeric and Dendritic Electroactive Materials
多尺度理论指导变革聚合物和树枝状电活性材料的开发
  • 批准号:
    0905686
  • 财政年份:
    2009
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Continuing Grant
International Conference on Molecular Photonics: Interaction of Light with Nano-structured Materials; Friday Harbor, WA
国际分子光子学会议:光与纳米结构材料的相互作用;
  • 批准号:
    0738632
  • 财政年份:
    2007
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Standard Grant
Development of Synthesis, Processing, and Characterization Techniques for Next Generation Electroactive Materials
下一代电活性材料的合成、加工和表征技术的发展
  • 批准号:
    0551020
  • 财政年份:
    2006
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Continuing Grant
NIRT: Nanostructured Optoelectronic Materials: New Concepts in Theoretical Design, Synthesis, and Processing
NIRT:纳米结构光电材料:理论设计、合成和加工的新概念
  • 批准号:
    0103009
  • 财政年份:
    2001
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Continuing Grant
Development of Synthesis, Processing, and Characterization Techniques for Next Generation Electroactive Materials
下一代电活性材料的合成、加工和表征技术的发展
  • 批准号:
    0092380
  • 财政年份:
    2000
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Standard Grant
Development of Synthesis, Processing, and Characterization Techniques for Next Generation Electroactive Materials
下一代电活性材料的合成、加工和表征技术的发展
  • 批准号:
    9818179
  • 财政年份:
    1999
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Standard Grant
The Ultrastructure Synthesis and Nonlinear Spectroscopy of Photonic Materials
光子材料的超微结构合成与非线性光谱学
  • 批准号:
    9528021
  • 财政年份:
    1996
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Continuing Grant
New Polymeric Materials for Nonlinear Optical Applications
用于非线性光学应用的新型聚合物材料
  • 批准号:
    9107806
  • 财政年份:
    1992
  • 资助金额:
    $ 25.48万
  • 项目类别:
    Continuing Grant

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共轭聚电解质聚合物和低聚物的光激活抗病毒活性机制
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