Retrieval of a complex-valued object from its diffraction pattern

被引：45

作者：

McBride, W ^{[1
]}

O'Leary, NL ^{[1
]}

Allen, LJ ^{[1
]}

机构：

[1] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 23期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.93.233902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is commonly understood that the retrieval of a complex-valued object from its diffraction pattern using a support constraint is a difficult problem, the more so if the support is symmetric. In this Letter we show that, for just such a symmetric support, use of an iterative algorithm in which the basic iteration is specified by a difference map converges routinely. All that is required is sufficient oversampling in the diffraction pattern coupled with judicious choices of the parameters defining the difference map.

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页数：4

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