...
首页> 外文期刊>Physical Review X >Ultrafast Control of Material Optical Properties via the Infrared Resonant Raman Effect
【24h】

Ultrafast Control of Material Optical Properties via the Infrared Resonant Raman Effect

机译:通过红外谐振拉曼效应超快控制材料光学性能

获取原文
           

摘要

The Raman effect, inelastic scattering of light by lattice vibrations (phonons), produces an optical response closely tied to a material’s crystal structure. Here we show that resonant optical excitation of IR and Raman phonons gives rise to a Raman-scattering effect that can induce giant shifts to the refractive index and induce new optical constants that are forbidden in the equilibrium crystal structure. We complete the description of light-matter interactions mediated by coupled IR and Raman phonons in crystalline insulators—currently the focus of numerous experiments aiming to dynamically control material properties—by including a forgotten pathway through the nonlinear lattice polarizability. Our work expands the toolset for control and development of new optical technologies by revealing that the absorption of light within the terahertz gap can enable control of optical properties of materials over a broad frequency range.
机译:拉曼效应,通过晶格振动(声子)的光的非弹性散射产生与材料的晶体结构紧密相关的光学响应。 在这里,我们表明IR和拉曼声子的谐振光学激发产生了可以诱导巨型转向折射率的拉曼散射效果,并诱导在平衡晶体结构中禁止的新光学常数。 我们完成了晶体绝缘体中耦合的IR和拉曼子宫内介导的浅品相互作用的描述 - 目前旨在通过非线性晶格极化的被遗弃的通路动态地控制材料性能的许多实验的焦点。 我们的工作通过揭示太赫兹间隙内的光吸收光,扩展了用于控制和开发新光学技术的工具集可以使得能够在宽频频范围内控制材料的光学性质。

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