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Iterative Phase Retrieval (Jianwei Miao & David Sayre). Diffraction Pattern Fourier Transformation Phase Information is lost. Compare with observed pattern. Make diffraction pattern. Iteration. Reconstruction Fourier Transformation with assumed phase. You need not to make crystal.

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iterative phase retrieval jianwei miao david sayre
Iterative Phase Retrieval (Jianwei Miao & David Sayre)

Diffraction Pattern

Fourier Transformation

Phase Information is lost

Compare with

observed pattern

Make diffraction pattern

Iteration

Reconstruction

Fourier Transformation

with assumed phase

You need not

to make crystal

reconstruction of complex real space images
Reconstruction of Complex Real Space Images

Real Space

Phase Retrieval

Scattered Intensity

slide3

SEM image of Ni pattern on SiN

Coherent Scattering Pattern

3D Reconstructed Image (~50 nm resolution)

2D Reconstructed Image (<10 nm resolution)

3D Diffraction Nanoscopy

Miao et al.PRL (2002)

8 nm resolution

Two Layer Ni Pattern

e coli bacteria
E. Coli Bacteria

Reconstructed Image

Coherent Scattering Pattern

25 nm resolution

J. Miao, et al.: PNAS, 100 (2003) 110-112

Visible, Confocal Microscopy