Optical Processing in Radon Space.

1984 ◽  
Author(s):  
H. H. Barrett
Optics News ◽  
1982 ◽  
Vol 8 (6) ◽  
pp. 11
Author(s):  
Harrison H. Barrett

1982 ◽  
Vol 7 (6) ◽  
pp. 248 ◽  
Author(s):  
Harrison H. Barrett

Author(s):  
E. Zeitler ◽  
M. G. R. Thomson

In the formation of an image each small volume element of the object is correlated to an areal element in the image. The structure or detail of the object is represented by changes in intensity from element to element, and this variation of intensity (contrast) is determined by the interaction of the electrons with the specimen, and by the optical processing of the information-carrying electrons. Both conventional and scanning transmission electron microscopes form images which may be considered in this way, but the mechanism of image construction is very different in the two cases. Although the electron-object interaction is the same, the optical treatment differs.


1999 ◽  
Author(s):  
Kelvin Wagner ◽  
Shawn Kraut ◽  
Lloyd Griffiths
Keyword(s):  

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamed Azhdari ◽  
Sahel Javahernia

Abstract Increasing the speed of operation in all optical signal processing is very important. For reaching this goal one needs high speed optical devices. Optical half adders are one of the important building blocks required in optical processing. In this paper an optical half adder was proposed by combining nonlinear photonic crystal ring resonators with optical waveguides. Finite difference time domain method wase used for simulating the final structure. The simulation results confirmed that the rise time for the proposed structure is about 1 ps.


1984 ◽  
Vol 51 (6) ◽  
pp. 377-381
Author(s):  
F.T.S. Yu ◽  
X.X. Chen
Keyword(s):  

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