• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Nonlinear Optical Transmission and Multiphoton Processes in Organics II >Two-photon absorption, absorption saturation and dispersion of the real and imaginary parts of the third-order optical nonlinearity in organometallic dendrimers
【24h】

Two-photon absorption, absorption saturation and dispersion of the real and imaginary parts of the third-order optical nonlinearity in organometallic dendrimers

机译：有机金属树枝状大分子中三阶光学非线性的实部和虚部的双光子吸收，吸收饱和和色散

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have been studying third-order NLO properties of ruthenium-containing organometallic dendrimers. These molecules offer large hyperpolarizabilities and the possibility to control both the refractive and absorptive parts of the nonlinear response by electrochemical switching of the oxidation state of the ruthenium centres. Time-resolved studies indicate that it is possible to switch the molecules between the form in which they are two-photon absorbers and the state where they are fast (～ 1 picosecond time scale) saturable absorbers. Measurements of the dispersion of third-order nonlinearity have been made by the Z-scan technique on a nitro decorated dendrimer. They indicate that competition between two-photon absorption and absorption saturation is present in some wavelength ranges. The dispersion of both the real and imaginary parts of the cubic polarizability could be modelled by considering leading terms of the dispersion relation.
机译：我们一直在研究含钌有机金属树枝状大分子的三阶NLO性质。这些分子具有很大的超极化能力，并且可以通过电化学转换钌中心的氧化态来控制非线性响应的折射和吸收部分。时间分辨研究表明，可以在两种光子吸收剂的形式与快速（〜1皮秒时标）可饱和吸收剂的状态之间切换分子。通过Z扫描技术在硝基修饰的树枝状聚合物上进行了三阶非线性色散的测量。他们表明在某些波长范围内存在双光子吸收和吸收饱和之间的竞争。立方极化率实部和虚部的色散均可通过考虑色散关系的先行项来建模。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号