Development of electron differential interferometry and its application to magnetic materials
电子微分干涉技术的发展及其在磁性材料中的应用
基本信息
- 批准号:09555021
- 负责人:
- 金额:$ 7.17万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1997
- 资助国家:日本
- 起止时间:1997 至 1999
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Electron holography, which enables us to measure the electron phase shift with high precise and high resolution, requires a well-defined reference wave. This restricts the application to materials science. The theme of this research is to develop a new electron differential microscopy to overcome this disadvantage of electron holography and a system which makes a real time observation possible.Following results have been obtained in this project :i) In order to compensate for the lack of sensitivity in differential interferometry for weak phase objects, we proposed electron phase differential micrography that is realized by means of digital reconstruction method. For convenience an electron trapezoidal prism has been invented and replaced electron biprism.ii) We successfully observed directly the magnetic vectors in ferromagnetic thin films and that leaking from single magnetic domain particles by the two dimensional differentiation. It has been found that the reference phase reconstructed from all holograms should be coincident to each other, and an effect of Fresnel diffraction at an electron prism is important, too.iii) A complete simulation of electron holograms which include Fresnel effects, the quantum noise and the coherency of electrons has been accomplished.iv) Applying an additional square-wave voltage to the electron trapezoidal prism and recording double-exposure holograms on videotape, we confirmed that the real time observation in electron differential interferometry is available, though the time resolution obtained is about 1 sec. so far.
电子全息图使我们能够以高精确和高分辨率测量电子相移,需要明确定义的参考波。这限制了材料科学的应用。这项研究的主题是开发一种新的电子差异显微镜,以克服电子全息图和一种使实时观察的系统的缺点。在该项目中获得了实时观察的结果:i)为了补偿缺乏对弱相位对象的差异间隔对象的差异介入的敏感性,我们提出了Electon digital requortion Recons Insint requortim requornition。为了方便起见,已经发明了电子梯形棱镜并取代了电子二倍主义。已经发现,从所有全息图中重建的参考阶段应相互重建,并且在电子启发时在电子prism处的菲涅耳衍射的效果也很重要。录像带上的双曝光全息图,我们证实了电子差异干涉仪中的实时观察,尽管获得的时间分辨率约为1秒。迄今为止。
项目成果
期刊论文数量(60)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
平山司: "電子波干渉による電場・磁場の直視と材料科学への応用"まてりあ. 37・6. 454-460 (1998)
平山司:“通过电子波干涉直接观察电场和磁场及其在材料科学中的应用”Materia 37・6(1998)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Hanai: "Maximum entropy restoration of electron microscope images with random spatial distribution constraint" Scanning Microscopy. supl.11(発表予定). (1998)
T.Hanai:“具有随机空间分布约束的电子显微镜图像的最大熵恢复”扫描显微镜。11(待提交)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
花井孝明: "Maximum entropy restoration of electron microscope images with random spatial distribution constrait" Scanning Microscopy. supl. 11(発表予定). (1998)
Takaaki Hanai:“具有随机分布约束的电子显微镜图像的最大熵空间恢复”扫描显微镜 11(待提交)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T. Hanai: "Characteristics and effectiveness of a foil lens for correction of spherica aberration in scanning transmission electron microscopy"Journal of Electro Microscopy. 47・3. 185-192 (1998)
T. Hanai:“扫描透射电子显微镜中用于校正球面像差的箔透镜的特性和有效性”《电子显微镜杂志》47・3(1998)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T. Hanai: "Reduction of spherical aberration of a transmission electron microscope by means of a foil lens"Electron Microscopy. 1. 82-84 (1998)
T. Hanai:“通过箔透镜减少透射电子显微镜的球差”电子显微镜。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
TANJI Takayoshi其他文献
TANJI Takayoshi的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('TANJI Takayoshi', 18)}}的其他基金
In-situ observation of fuel cells' reaction by transmission electron microscopy
透射电子显微镜原位观察燃料电池反应
- 批准号:
20246013 - 财政年份:2008
- 资助金额:
$ 7.17万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
In-situ observation of the inner-potential at hetero-interfaces by electron holography
电子全息术原位观察异质界面内电势
- 批准号:
16079207 - 财政年份:2004
- 资助金额:
$ 7.17万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Development of a real time stereo phase microscope
实时体视显微镜的研制
- 批准号:
14205008 - 财政年份:2002
- 资助金额:
$ 7.17万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Equipping a transmission electron microscope with a field emission electron gun.
配备带有场发射电子枪的透射电子显微镜。
- 批准号:
13555006 - 财政年份:2001
- 资助金额:
$ 7.17万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Fundamental Study on magnetic-granular films with fine structures
精细结构磁性颗粒薄膜的基础研究
- 批准号:
08455142 - 财政年份:1996
- 资助金额:
$ 7.17万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
相似海外基金
N-glycan baiting to target the highly effective HIV Env shield
N-聚糖诱饵瞄准高效的 HIV 包膜屏障
- 批准号:
10388295 - 财政年份:2019
- 资助金额:
$ 7.17万 - 项目类别: