MRI: Development of an Ultrafast Time-Resolved Microscope for Imaging of Charge Carrier Dynamics in Complex Materials
MRI:开发用于复杂材料中电荷载流子动力学成像的超快时间分辨显微镜
基本信息
- 批准号:0116034
- 负责人:
- 金额:$ 41.28万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-08-01 至 2004-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
With this award from the Major Research Instrumentation Program, the University of Pittsburgh will be able to develop a unique instrument for studying both momentum and spatially resolved charge carrier dynamics in solid state materials. The combination of photoemission electron microscopy and ultrafast laser excitation of two-photon photoemission will be used for the spatiotemporal imaging of electrons in solid-state materials with less than twenty nanometer spatial resolution and less than one femtosecond temporal resolution. The proposed time-resolved photoemission electron microscope will offer several orders-of-magnitude better resolution over the currently available technology, which is necessary to obtain dynamical images quantum mechanical phenomena in solid state materials. The expected outcome of the research is a better understanding of charge carrier dynamics in the quantum regime, discovery of new physical phenomena, improved understanding of optical and electronic devices, and education of students in instrument science and nano-science.With this award from the Major Research Instrumentation Program, the University of Pittsburgh will be able to develop a unique instrument for studying both momentum and spatially resolved charge carrier dynamics in solid state materials. As the size of optical and electronic devices shrinks to the nanometer scale, the physics describing their properties changes from the classical to the quantum regime. This presents a need for instrumentation for imaging of the dynamical electronic properties on nanometer scale. A unique instrument for time-resolved microscopy to be developed will provide an unprecedented ability to create movies with less than one femtosecond temporal and less than twenty nanometers spatial resolution of how electrons in a solid state material evolve in energy, space, and time. The development project will educate students in techniques of lasers, vacuum, and microscopy at the forefront of nanotechnology and device physics. The time-resolved microscope will provide an indispensable and strategic tool for understanding novel physical phenomena and for developing advanced optical and electronic devices.
有了这项来自主要研究仪器计划的奖项,匹兹堡大学将能够开发一种独特的仪器,用于研究固态材料中的动量和空间分辨电荷载流子动力学。光电发射电子显微镜和双光子光电发射的超快激光激发的组合将用于固态材料中电子的时空成像,其空间分辨率小于20纳米,时间分辨率小于1飞秒。 拟议的时间分辨光电子显微镜将提供几个数量级的更好的分辨率比目前可用的技术,这是必要的,以获得动态图像量子力学现象在固态材料。该研究的预期成果是更好地理解量子体系中的电荷载流子动力学,发现新的物理现象,提高对光学和电子器件的理解,以及对学生进行仪器科学和纳米科学的教育。匹兹堡大学将能够开发一种独特的仪器,用于研究固态材料中的动量和空间分辨的电荷载流子动力学。随着光学和电子器件的尺寸缩小到纳米尺度,描述其性质的物理学从经典到量子领域。这提出了一个需要的仪器成像的动态电子性能在纳米尺度上。 一种独特的时间分辨显微镜仪器将提供前所未有的能力,以创造不到一个飞秒的时间和不到20纳米的空间分辨率的电影如何在固态材料中的电子在能量,空间和时间演变。 该开发项目将教育学生在纳米技术和器件物理学的前沿激光,真空和显微镜技术。时间分辨显微镜将为理解新的物理现象和开发先进的光学和电子器件提供不可或缺的战略工具。
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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Hrvoje Petek其他文献
Ultrafast carrier-phonon dynamics under intense optical excitation of GaAs
GaAs 强光激发下的超快载流子声子动力学
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:0
- 作者:
Amlan Basak;Muneaki Hase^2;Masahiro Kitajima^3;Hrvoje Petek - 通讯作者:
Hrvoje Petek
Spectromicroscopy at the space-time limit
时空极限的光谱显微镜
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:6.4
- 作者:
Hrvoje Petek - 通讯作者:
Hrvoje Petek
Spatial Distribution of Defect States induced by an Oxygen Atom Vacancy and Hydroxyl Impurity Defects on TiO_2(110)Surface
TiO_2(110)表面氧原子空位和羟基杂质缺陷引起的缺陷态空间分布
- DOI:
- 发表时间:
2009 - 期刊:
- 影响因子:0
- 作者:
Taketoshi Minato;Yasuyuki Sainoo;Yousoo Kim;Hiroyuki S.Kato;Ken-ichi Aika;Maki Kawai;Hrvoje Petek;Tian Huang;Wei He;Bing Wang;Zhuo Wang;Yan Zhao;Jinlong Yang;J.G.Hou - 通讯作者:
J.G.Hou
人間の色知覚特性に基づいた色の類似度の定義に関する研究
基于人类颜色感知特征的颜色相似度定义研究
- DOI:
- 发表时间:
2012 - 期刊:
- 影响因子:0
- 作者:
湊丈俊;道祖尾恭之;Jin Zhao;Tian Huang;金有洙;加藤浩之;Wei He;Bing Wang;Zhuo Wang;Yan Zhao;秋鹿研一;Jinlong Yang;J.G.Hou;Hrvoje Petek;川合真紀;五十公野由起子;五十公野由起子;張英夏 - 通讯作者:
張英夏
Coherent LO phonon self-energy renormalization under high photoexcited carrierdensities in Si
Si 中高光激发载流子密度下的相干 LO 声子自能重整化
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:0
- 作者:
A. M. Constatinescu;Muneaki Hase;Masahiro Kitajima;Hrvoje Petek - 通讯作者:
Hrvoje Petek
Hrvoje Petek的其他文献
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{{ truncateString('Hrvoje Petek', 18)}}的其他基金
Calcium: Chemically and Electronically a Transition Metal?
钙:从化学角度和电子角度来说是一种过渡金属?
- 批准号:
2303197 - 财政年份:2023
- 资助金额:
$ 41.28万 - 项目类别:
Standard Grant
Ultrafast Coherent Spectroscopy of TiO2 Photocatalytic Processes
TiO2 光催化过程的超快相干光谱
- 批准号:
2102601 - 财政年份:2021
- 资助金额:
$ 41.28万 - 项目类别:
Continuing Grant
TiO2 Photocatalysis: The coupling of electrons, plasmons, polarons, and molecules by ultrafast photoemission spectroscopy and theory
TiO2 光催化:通过超快光电子能谱和理论耦合电子、等离激元、极化子和分子
- 批准号:
1565842 - 财政年份:2016
- 资助金额:
$ 41.28万 - 项目类别:
Continuing Grant
Materials World Network, SusChEM: Collaborative: Electron-Lattice Dynamics at an Atomically Controlled Buried Interface
材料世界网络,SusChEM:协作:原子控制掩埋界面的电子晶格动力学
- 批准号:
1311845 - 财政年份:2013
- 资助金额:
$ 41.28万 - 项目类别:
Standard Grant
Titanium Dioxide Photocatalysis: Interactions of band edge carriers with molecules by ultrafast photoemission spectroscopy and theory
二氧化钛光催化:超快光电子能谱和理论的带边载流子与分子的相互作用
- 批准号:
1213189 - 财政年份:2012
- 资助金额:
$ 41.28万 - 项目类别:
Standard Grant
The electronic structure and dynamics of clean and adsorbate modified graphene
清洁和吸附改性石墨烯的电子结构和动力学
- 批准号:
0911456 - 财政年份:2009
- 资助金额:
$ 41.28万 - 项目类别:
Standard Grant
The Electronic Structure and Dynamics of Solvated Electrons at the Solid-vacuum Interface
固-真空界面溶剂化电子的电子结构和动力学
- 批准号:
0650756 - 财政年份:2007
- 资助金额:
$ 41.28万 - 项目类别:
Continuing Grant
The Role of Substrate Band Structure in Photochemistry on Metal Surfaces
基底能带结构在金属表面光化学中的作用
- 批准号:
0209706 - 财政年份:2002
- 资助金额:
$ 41.28万 - 项目类别:
Continuing Grant
Dynamics of Photochemical CIS-Trans Isomerization of Olefins: A Long-term Visit to Japan Under Photoconversion Program
烯烃光化学顺式-反式异构化动力学:光转换项目长期访问日本
- 批准号:
8419500 - 财政年份:1985
- 资助金额:
$ 41.28万 - 项目类别:
Standard Grant
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