The phase distribution in rough surface scatter for finite distances between transmitter and receiver

2005 ◽  
Author(s):  
P. Beckmann
Keyword(s):  
Rough Surface ◽  
Phase Distribution ◽  
Surface Scatter

scholarly journals Pulse probing of a rough surface scatter channel

1974 ◽  
Vol 55 (S1) ◽  
pp. S66-S66
Author(s):  
J. G. Zornig ◽  
J. F. McDonald
Keyword(s):  
Rough Surface ◽  
Surface Scatter

Wave optics simulation of statistically rough surface scatter

2017 ◽  
Author(s):  
Samuel D. Butler ◽  
Michael A. Marciniak ◽  
Mark F. Spencer ◽  
Ann Lanari
Keyword(s):  
Rough Surface ◽  
Wave Optics ◽  
Surface Scatter

A simulation technique to investigate rough surface scatter

Wear ◽  
1986 ◽  
Vol 109 (1-4) ◽  
pp. 43-56 ◽  
Author(s):  
F. Sweeney ◽  
T.A. Spedding
Keyword(s):  
Rough Surface ◽  
Simulation Technique ◽  
Surface Scatter

scholarly journals Energy Conservation for Rough‐Surface Scatter

1970 ◽  
Vol 48 (1A) ◽  
pp. 128-128
Author(s):  
P. J. Lynch ◽  
R. J. Wagner
Keyword(s):  
Energy Conservation ◽  
Rough Surface ◽  
Surface Scatter

Digital phase analysis in interference electron microscopy

1988 ◽  
Vol 46 ◽  
pp. 842-843
Author(s):  
S. Hasegawa ◽  
T. Kawasaki ◽  
J. Endo ◽  
M. Futamoto ◽  
A. Tonomura
Keyword(s):  
Magnetic Field ◽  
Electron Microscopy ◽  
Phase Distribution ◽  
Magnetic Recording Media ◽  
Electron Wave ◽  
Vector Potentials ◽  
Weak Magnetic Fields ◽  
Leakage Magnetic Field ◽  
Optical Reconstruction ◽  
Processing Techniques

Interference electron microscopy enables us to record the phase distribution of an electron wave on a hologram. The distribution is visualized as a fringe pattern in a micrograph by optical reconstruction. The phase is affected by electromagnetic potentials; scalar and vector potentials. Therefore, the electric and magnetic field can be reduced from the recorded phase. This study analyzes a leakage magnetic field from CoCr perpendicular magnetic recording media. Since one contour fringe interval corresponds to a magnetic flux of Φo(=h/e=4x10-15Wb), we can quantitatively measure the field by counting the number of finges. Moreover, by using phase-difference amplification techniques, the sensitivity for magnetic field detection can be improved by a factor of 30, which allows the drawing of a Φo/30 fringe. This sensitivity, however, is insufficient for quantitative analysis of very weak magnetic fields such as high-density magnetic recordings. For this reason we have adopted “fringe scanning interferometry” using digital image processing techniques at the optical reconstruction stage. This method enables us to obtain subfringe information recorded in the interference pattern.

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