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Journal Article Stepwise Angular Spectrum Method for Curved Surface Diffraction
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Authors
Chi-Young Hwang, Seungtaik Oh, Il-Kwon Jeong, Hwi Kim
Issue Date
2014-05
Citation
Optics Express, v.22, no.10, pp.12659-12667
ISSN
1094-4087
Publisher
Optical Society of America(OSA)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1364/OE.22.012659
Abstract
We present a method to calculate wave propagation between arbitrary curved surfaces using a staircase approximation approach. The entire curved surface is divided into multiple subregions and each curved subregion is approximated by a piecewise flat subplane allowing the application of conventional diffraction theory. In addition, in order to reflect the local curvature of each subregion, we apply the phase compensation technique. Analytical expressions are derived based on the angular spectrum method and numerical studies are conducted to validate our method. © 2014 Optical Society of America.
KSP Keywords
Angular spectrum, Curved surface, Diffraction theory, Local curvature, Numerical studies, Surface diffraction, Wave propagation, analytical expression, approximation approach, compensation technique, phase compensation
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