Nonlinear Optical Spectroscopy of Mixed-Valent Materials

混合价材料的非线性光谱

基本信息

  • 批准号:
    9973343
  • 负责人:
  • 金额:
    $ 7.38万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1999
  • 资助国家:
    美国
  • 起止时间:
    1999-05-15 至 2001-10-31
  • 项目状态:
    已结题

项目摘要

9973343CundiffThis project will search for second order optical nonlinear generation in mixed valent materials at terahertz frequencies. In mixed valent materials, there is an energetic overlap between f electron states and the d electrons in the conduction band. The results of this project will provide new fundamental insight into the presence of ground state coherence between the f and d states. The presence of such coherence results in a breaking of the crystalline inversion symmetry, which makes second harmonic generation allowed. The coherence will also mean that these materials form a new class of electronic ferroelectrics. Because the bandgap in these materials amounts to only 10 meV, it is resonant with very far infrared light. To generate sufficiently intense pulses at these wavelengths, we will use the process known as terahertz generation that is based on amplified ultrashort visible pulses. The results of this project will provide important feedback to the theory, which is related to a wide range of materials that display electronic correlation.%%%This project will search for second order optical nonlinear generation in mixed valent materials at terahertz frequencies. The results of this project will provide important feedback to the theory, which is related to a wide range of materials that display electronic correlation. This research merges condensed matter with quantum optics, thereby providing graduate students with broad training in both areas.***
9973343这个项目将研究太赫兹频率下混合价材料中的二阶光学非线性产生。在混合价材料中,f电子态和导带中的d电子之间存在能量重叠。该项目的结果将为f和d态之间基态相干的存在提供新的基本见解。这种相干的存在导致晶体反转对称性的破坏,这使得二次谐波的产生成为可能。这种相干性还意味着这些材料形成了一类新的电子铁电体。由于这些材料的带隙只有10 meV,所以它与远红外光共振。为了在这些波长产生足够强的脉冲,我们将使用基于放大的超短可见光脉冲的太赫兹产生过程。这个项目的结果将为该理论提供重要的反馈,该理论与表现出电子关联的广泛材料有关。本项目将探索在太赫兹频率下混合价材料中的二阶光学非线性产生。这个项目的结果将为该理论提供重要的反馈,该理论与显示电子关联的广泛材料有关。这项研究将凝聚态物质与量子光学相结合,从而为研究生在这两个领域提供了广泛的培训。

项目成果

期刊论文数量(0)
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会议论文数量(0)
专利数量(0)

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Steven Cundiff其他文献

Ultrafast Phenomena XIX
超快现象 XIX
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kaoru Yamanouchi;Steven Cundiff;Regina de Vivie-Riedle;Makoto Kuwata-Gonokami and Louis Dimauro
  • 通讯作者:
    Makoto Kuwata-Gonokami and Louis Dimauro

Steven Cundiff的其他文献

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{{ truncateString('Steven Cundiff', 18)}}的其他基金

Quantum Interference Control of Photoexcited Carriers for K-Space Microscopy
K 空间显微镜中光激发载流子的量子干涉控制
  • 批准号:
    2004286
  • 财政年份:
    2020
  • 资助金额:
    $ 7.38万
  • 项目类别:
    Continuing Grant
PFI-TT: Development of a Software-Reconfigurable, Ultrafast Spectroscopic Microscope
PFI-TT:软件可重构、超快光谱显微镜的开发
  • 批准号:
    2016356
  • 财政年份:
    2020
  • 资助金额:
    $ 7.38万
  • 项目类别:
    Standard Grant
Measuring Quantum Dot Interactions Using Coherent Two-Dimensional Spectroscopy
使用相干二维光谱测量量子点相互作用
  • 批准号:
    1622768
  • 财政年份:
    2015
  • 资助金额:
    $ 7.38万
  • 项目类别:
    Continuing Grant
Measuring Quantum Dot Interactions Using Coherent Two-Dimensional Spectroscopy
使用相干二维光谱测量量子点相互作用
  • 批准号:
    1415398
  • 财政年份:
    2014
  • 资助金额:
    $ 7.38万
  • 项目类别:
    Continuing Grant
NER: Terahertz Detection of Electron Spin Precession
NER:电子自旋进动的太赫兹检测
  • 批准号:
    0209279
  • 财政年份:
    2002
  • 资助金额:
    $ 7.38万
  • 项目类别:
    Standard Grant
Spin Electronics Novel Optical Probe of Carrier Spin Coherence in Semiconductors
自旋电子学半导体中载流子自旋相干性的新型光学探针
  • 批准号:
    0224154
  • 财政年份:
    2002
  • 资助金额:
    $ 7.38万
  • 项目类别:
    Continuing Grant

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