...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Chemical Physics >Femtosecond time resolved coherent anti-Stokes Raman spectroscopy of H2–N2 mixtures in the Dicke regime: Experiments and modeling of velocity effects
【24h】

Femtosecond time resolved coherent anti-Stokes Raman spectroscopy of H2–N2 mixtures in the Dicke regime: Experiments and modeling of velocity effects

机译：飞秒时间分辨Dicke模式下H2-N2混合物的相干反斯托克斯拉曼光谱：实验和速度效应模型

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

In this paper, we present measurements and modeling of femtosecond time resolved coherent anti-Stokes Raman spectroscopy CARS signal in H2–N2 mixtures at low densities. Three approaches have been used to model the CARS response. The first is the usual sum of Voigt profiles. In the second approach, the speed dependent Voigt profile is used. In the last approach, a model of the temporal CARS signal is developed, which takes into account the velocity changes induced by collisions and the speed dependence of the collisional parameters. The velocity changes are modeled using the Keilson and Storer memory function; the radiator speed dependences of the collisional parameters are determined from their temperature dependences. The results obtained are consistent with previous studies in the frequency domain, showing that the changes of the velocity have important effects for the H2 /N2 system in the Dicke narrowing density regime.
机译：在本文中，我们介绍了低密度H2–N2混合物中飞秒时间分辨相干反斯托克斯拉曼光谱CARS信号的测量和建模。已使用三种方法对CARS响应进行建模。首先是通常的Voigt配置文件总和。在第二种方法中，使用了速度相关的Voigt配置文件。在最后一种方法中，开发了时间CARS信号模型，该模型考虑了由碰撞引起的速度变化以及碰撞参数的速度依赖性。使用Keilson和Storer记忆功能对速度变化进行建模。碰撞参数的散热器速度依赖性取决于其温度依赖性。获得的结果与先前在频域上的研究一致，表明速度的变化对迪克变窄密度体系中的H2 / N2系统具有重要影响。

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