• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Light scattering studies of two systems. I.~Surface plasmon enhanced Brillouin scattering in silver films: Double resonance effect. II.~Relation of anomalous Raman spectra of gallium-arsenide to metastable transitions of EL2 defects.
【24h】

Light scattering studies of two systems. I.~Surface plasmon enhanced Brillouin scattering in silver films: Double resonance effect. II.~Relation of anomalous Raman spectra of gallium-arsenide to metastable transitions of EL2 defects.

机译：两种系统的光散射研究。 I.〜表面等离激元增强了银膜中的布里渊散射：双重共振效应。 II。〜砷化镓的拉曼光谱异常与EL2缺陷的亚稳转变的关系。

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

Light scattering studies of two different phenomena, Surface Plasmon enhanced Brillouin scattering and anomalous forbidden optical Raman scattering in GaAs, are presented in this work. The enhancement of surface non-linear optical phenomena by the high surface electromagnetic fields associated with surface plasmons has been extensively explored. In particular much interest has been generated by the phenomenon of Surface Enhanced Raman Scattering in which the Raman scattering cross-section of molecules adsorbed to roughened metal surfaces is found to be increased by a factor ;The second project explores the origin of the anomalous forbidden optical phonon Raman signals observed in the Nd:YAlG laser Raman spectra of GaAs. The appearance of the anomalous Raman signal was found to coincide with the quench of a band of sub-bandgap absorption associated with the EL2 defect. Our experiments showed that the anomalous signal arose as a consequence of the quench in the sample absorption.
机译：这项工作介绍了两种不同现象的光散射研究，即表面等离激元增强的布里渊散射和GaAs中反常禁止的光学拉曼散射。已经广泛地探索了通过与表面等离子体激元相关的高表面电磁场来增强表面非线性光学现象。特别是表面增强拉曼散射现象引起了人们的极大兴趣，在这种现象中，发现吸附在粗糙金属表面上的分子的拉曼散射截面增加了一个因子；第二个项目探讨了反常禁光学的起源。在GaAs的Nd：YAlG激光拉曼光谱中观察到的声子拉曼信号。发现异常拉曼信号的出现与与EL2缺陷相关的亚带隙吸收带的猝灭相符。我们的实验表明，异常信号是由于样品吸收中的猝灭而产生的。

著录项

  • 作者

    Robertson, William Michael.;

  • 作者单位

    Purdue University.;

  • 授予单位 Purdue University.;
  • 学科 Physics Condensed Matter.
  • 学位 Ph.D.
  • 年度 1988
  • 页码 187 p.
  • 总页数 187
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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