Simultaneous correction of spherical and chromatic aberrations by dynamic hollow-cone illumination
通过动态空心锥照明同时校正球差和色差
基本信息
- 批准号:20246015
- 负责人:
- 金额:$ 14.06万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (A)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A novel wave field restoration method under dynamic hollow-cone illumination is demonstrated using a series of 64 azimuthally rotated images in transmission electron microscopy(TEM). The restoration of the exit wave field was performed by utilizing spherical and chromatic aberration-free Fourier components. The images obtained by inverse Fourier transform of the integrated Fourier spectrum for the azimuthally rotated images clearly showed successful separation of real and imaginary components of the exit wave and resolution enhancement beyond the information limit under axial illumination. Another way to achieve higher spatial resolution was also proposed using the three-dimensional Fourier filtering method applied to tilted illumination. In the approach, the degradation of image contrast caused by chromatic aberration was reduced and the image distortion caused by spherical aberration, coma aberration and three-fold astigmatism was corrected, resulting in the achievement of 1. 4 times higher resolution beyond the information limit under axial illumination.
使用透射电子显微镜 (TEM) 中的一系列 64 个方位角旋转图像演示了动态空心锥照明下的新型波场恢复方法。利用球面和无色差傅里叶分量来恢复出射波场。通过对方位角旋转图像的积分傅里叶谱进行傅里叶逆变换获得的图像清楚地显示了出射波的实部和虚部的成功分离以及轴向照明下超出信息极限的分辨率增强。还提出了另一种实现更高空间分辨率的方法,即使用应用于倾斜照明的三维傅立叶滤波方法。该方法减少了色差引起的图像对比度下降,校正了球差、彗形像差和三倍像散引起的图像畸变,在信息极限下实现了1. 4倍的高分辨率。轴向照明。
项目成果
期刊论文数量(67)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Development of Computer Assisted Imaging System for TEM with Direct Electron Detection Type CCD Camera
直接电子探测型CCD相机TEM计算机辅助成像系统的研制
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:H. Kizawa;W. Togashi;M. Hayashida;Y. Kimura and Y. Takai
- 通讯作者:Y. Kimura and Y. Takai
酸化コバルト微粒子を用いたグラファイト生成過程のその場TEM観察II
使用氧化钴细颗粒进行石墨形成过程的原位 TEM 观察 II
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:八尋孝典;高井義造
- 通讯作者:高井義造
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TAKAI Yoshizo其他文献
TAKAI Yoshizo的其他文献
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{{ truncateString('TAKAI Yoshizo', 18)}}的其他基金
Development of bio electron microscopy under ultra low electron dose conditions
超低电子剂量条件下生物电子显微镜的发展
- 批准号:
18206007 - 财政年份:2006
- 资助金额:
$ 14.06万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Development of Super Resolution Bio-Phase Transmission Electron Microscopy
超分辨率生物相透射电子显微镜的研制
- 批准号:
15360036 - 财政年份:2003
- 资助金额:
$ 14.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Direct Observation of DNA at a Molecular Scale Level by Three-Dimensional Fourier Filtering Method
三维傅立叶滤波法在分子尺度直接观察DNA
- 批准号:
13450036 - 财政年份:2001
- 资助金额:
$ 14.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of TEM specimen Holder Enabling Atomic Level Observation under One Atomospheric Pressure
开发可在一个大气压下进行原子水平观察的 TEM 样品架
- 批准号:
12555017 - 财政年份:2000
- 资助金额:
$ 14.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Super Resolution Phase Electron Microscopy
超分辨率相位电子显微镜的发展
- 批准号:
10450037 - 财政年份:1998
- 资助金额:
$ 14.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
相似海外基金
Development of ultimate imaging technique for dynamical and quantitative analyses
开发用于动态和定量分析的终极成像技术
- 批准号:
18K19010 - 财政年份:2018
- 资助金额:
$ 14.06万 - 项目类别:
Grant-in-Aid for Challenging Research (Exploratory)