Investigation on characteristics of multi-beam interference pattern for 3D structured-illumination incoherent holographic imaging

Author(s):  
Yutong Yan ◽  
Yuhong Wan ◽  
Hanbin Yu ◽  
Chao Liu ◽  
Yi Qin
Author(s):  
Benjamin Whetten ◽  
Carter F. Day ◽  
Dallin S. Durfee ◽  
Richard L. Sandberg

2017 ◽  
Vol 42 (13) ◽  
pp. 2543 ◽  
Author(s):  
P. S. Lebow ◽  
A. T. Watnik ◽  
J. R. Lindle

2019 ◽  
Vol 27 (10) ◽  
pp. 14969
Author(s):  
Jarom Jackson ◽  
Dallin Durfee

2021 ◽  
Author(s):  
Ben Whetten ◽  
Jarom Jackson ◽  
Richard Sandberg ◽  
Dallin Durfee

Author(s):  
M.A. Gribelyuk ◽  
J.M. Cowley

Recently the use of a biprism in a STEM instrument has been suggested for recording of a hologram. A biprism is inserted in the illumination system and creates two coherent focussed beams at the specimen level with a probe size d= 5-10Å. If one beam passes through an object and another one passes in vacuum, an interference pattern, i.e. a hologram can be observed in diffraction plane (Fig.1).


Author(s):  
Akira Tonomura

Electron holography is a two-step imaging method. However, the ultimate performance of holographic imaging is mainly determined by the brightness of the electron beam used in the hologram-formation process. In our 350kV holography electron microscope (see Fig. 1), the decrease in the inherently high brightness of field-emitted electrons is minimized by superposing a magnetic lens in the gun, for a resulting value of 2 × 109 A/cm2 sr. This high brightness has lead to the following distinguished features. The minimum spacing (d) of carrier fringes is d = 0.09 Å, thus allowing a reconstructed image with a resolution, at least in principle, as high as 3d=0.3 Å. The precision in phase measurement can be as high as 2π/100, since the position of fringes can be known precisely from a high-contrast hologram formed under highly collimated illumination. Dynamic observation becomes possible because the current density is high.


2010 ◽  
Vol 20 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Edouard Berrocal ◽  
Elias Kristensson ◽  
Mattias Richter ◽  
Mark Linne ◽  
Marcus Alden

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