Wavefunctions and excited-state dynamics of nanoparticle systems

纳米粒子系统的波函​​数和激发态动力学

• 批准号: 18205004
• 负责人: OKAMOTO Hiromi
• 金额: $ 32.45万
• 依托单位: Institute for Molecular Science (2006, 2008-2009)National Institute for Fusion Science (2007)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18205004/
• 关键词: ナノ材料; 走査プローブ顕微鏡; 近接場; 超高速分光; コヒーレンス; プラズモン; 金属ナノ微粒子; 走査プローダ顕微鏡

Fundamental technologies were developed to achieve spectroscopic measurements with very high spatial resolution and time resolution at the same time. Studies were also done to obtain fundamental knowledge for exploring wave characteristics of excited states of nanomaterials and manipulating them. We succeeded in visualization of wavefunctions of photo-excited states and spatial distributions of photons for various metal nanostructures, and revealed novel optical characteristics through the analyses of the observed images. We also obtained information on dynamics via time- and space-resolved spectroscopic measurements.

开发了基本技术以实现光谱测量，并同时具有很高的空间分辨率和时间分辨率。还进行了研究以获得基本知识，以探索纳米材料激发态的波特征并操纵它们。我们成功地可视化了光激发状态的波形和各种金属纳米结构的光子的空间分布，并通过观察到的图像的分析揭示了新的光学特性。我们还通过时间和空间分辨的光谱测量获得了有关动态的信息。

项目成果

Visualization of localized intense optical fields in single gold-nanoparticle assemblies and ultrasensitive Raman active sites

• DOI: 10.1021/nl061650p
• 发表时间: 2006-10-11
• 期刊: NANO LETTERS
• 影响因子: 10.8
• 作者: Imura, Kohei;Okamoto, Hiromi;Kitajima, Masahiro
• 通讯作者: Kitajima, Masahiro

Two-photon imaging of localized optical fields in the vicinity of silver nanowires using a scanning near-field optical microscope

使用扫描近场光学显微镜对银纳米线附近的局部光场进行双光子成像

• 发表时间: 2009
• 期刊: Phys. Chem. Chem. Phys. 11
• 作者: Kohei Imura;Young Chae Kim;Seongyong Kim;Dae Hong Jeong;Hiromi Okamoto
• 通讯作者: Hiromi Okamoto

Bioimaging with Two-Photon-Induced Luminescence from Triangular Nanoplates and Nanoparticle Aggregates of Gold

• DOI: 10.1002/adma.200802312
• 发表时间: 2009-06-12
• 期刊: ADVANCED MATERIALS
• 影响因子: 29.4
• 作者: Jiang, Yuqiang;Horimoto, Noriko Nishizawa;Shigemoto, Ryuichi
• 通讯作者: Shigemoto, Ryuichi

Properties of Photoluminescence from Single Gold Nanorods Induced by Near-Field Two-Photon Excitation

• DOI: 10.1021/jp9018074
• 发表时间: 2009-07-09
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Imura, Kohei;Okamoto, Hiromi
• 通讯作者: Okamoto, Hiromi

Near-field optical imaging of enhanced electric fields and plasmon waves in metal nanostructures

• DOI: 10.1016/j.progsurf.2009.03.003
• 发表时间: 2009-07
• 期刊: Progress in Surface Science
• 影响因子: 6.4
• 作者: H. Okamoto;K. Imura