Current-Based Hybrid Analysis in Surface-Wave Hybrid Formulation for Electromagnetics Modeling

Hybrid analysis for surface-wave effects on electrically large 2-D bodies with cracks

Journal of Electronics (China) ◽

10.1007/s11767-001-0041-4 ◽

2001 ◽

Vol 18 (3) ◽

pp. 285-288

Author(s):

Song Tang ◽

Weijiang Zhao ◽

Qizhong Liu

Keyword(s):

Surface Wave ◽

Hybrid Analysis ◽

Wave Effects

Download Full-text

Current-based hybrid analysis for surface-wave effects on large scatterers

IEEE Transactions on Antennas and Propagation ◽

10.1109/8.86885 ◽

1991 ◽

Vol 39 (6) ◽

pp. 839-850 ◽

Cited By ~ 25

Author(s):

D.-S. Wang

Keyword(s):

Surface Wave ◽

Hybrid Analysis ◽

Wave Effects

Download Full-text

Exit-surface wave reconstruction using a focal series

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100129577 ◽

1992 ◽

Vol 50 (2) ◽

pp. 988-989

Author(s):

W.J. de Ruijter ◽

M.R. McCartney ◽

David J. Smith ◽

J.K. Weiss

Keyword(s):

Surface Wave ◽

Spherical Aberration ◽

Data Extraction ◽

High Sensitivity ◽

Geometric Distortion ◽

Variation Method ◽

Objective Lens ◽

Immediate Reconstruction ◽

Exit Surface ◽

Electron Microscopes

Further advances in resolution enhancement of transmission electron microscopes can be expected from digital processing of image data recorded with slow-scan CCD cameras. Image recording with these new cameras is essential because of their high sensitivity, extreme linearity and negligible geometric distortion. Furthermore, digital image acquisition allows for on-line processing which yields virtually immediate reconstruction results. At present, the most promising techniques for exit-surface wave reconstruction are electron holography and the recently proposed focal variation method. The latter method is based on image processing applied to a series of images recorded at equally spaced defocus.Exit-surface wave reconstruction using the focal variation method as proposed by Van Dyck and Op de Beeck proceeds in two stages. First, the complex image wave is retrieved by data extraction from a parabola situated in three-dimensional Fourier space. Then the objective lens spherical aberration, astigmatism and defocus are corrected by simply dividing the image wave by the wave aberration function calculated with the appropriate objective lens aberration coefficients which yields the exit-surface wave.

Download Full-text