Variable aperture-based ptychographical iterative engine method
作者: Aihui SunYan KongXin MengXiaoliang HeRuijun DuZhilong JiangFei LiuLiang XueShouyu WangCheng Liu
作者单位: 1Jiangnan University
2Chinese Academy of Sciences
3Nanjing Agricultural University
4Shanghai University of Electric Power
刊名: Journal of Biomedical Optics, 2018, Vol.23 (2), pp.026007-026007
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.JBO.23.2.026007
关键词: Ptychographical iterative enginePhase imagingDigital micromirror device
原始语种摘要: A variable aperture-based ptychographical iterative engine (vaPIE) is demonstrated both numerically and experimentally to reconstruct the sample phase and amplitude rapidly. By adjusting the size of a tiny aperture under the illumination of a parallel light beam to change the illumination on the sample step by step and recording the corresponding diffraction patterns sequentially, both the sample phase and amplitude can be faithfully reconstructed with a modified ptychographical iterative engine (PIE) algorithm. Since many fewer diffraction patterns are required than in common PIE and the shape, the size, and the position of the aperture need not to be known exactly, this proposed vaPIE method remarkably reduces the data acquisition time and makes PIE less dependent on the mechanical...
全文获取路径: SPIE 
影响因子:2.881 (2012)

  • iterative 迭代
  • aperture 
  • engine 发动机
  • illumination 光照强度
  • reconstructed 修]重构[建
  • diffraction 衍射
  • imaging 图像形成
  • technique 技术
  • shape 形状
  • numerically 数字上