外文题目: Lens-free coherent modulation imaging with collimated illumination
作者: 陶华; 潘兴臣; 刘诚; 朱健强
刊名: Chin. Opt. Lett.
年: 2016 卷: 14 期: 7 文章编号：71203
英文关键词:

PHASE RETRIEVAL; FOURIER-TRANSFORM; DIFFRACTION; CRYSTALLOGRAPHY; RECONSTRUCTION; LASER
英文摘要:
We propose a lens-free coherent modulation imaging (CMI) method for reconstructing a general complex-valued wave field from a single frame of a diffraction pattern. A numerical Fourier transform is introduced in the iterative reconstruction process to replace the lens or zone plate used in the current CMI technique to adopt the constraint on the Fourier components of the exit wave field of the sample. While the complexity of the experimental setup is remarkably reduced by replacing the zone plate and additional accessories with the numerical processing, the energy fluence loss induced by the undesired diffraction orders of the zone plate can be also avoided. The feasibility of the proposed technique is verified experimentally with visible light.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.3788/COL201614.071203


全文传递服务