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Proceedings Paper

Effective medium theory for designing binary circular subwavelength diffractive optical elements
Author(s): Caihua Chen; Zhenwu Lu; Baochang Zhao
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Paper Abstract

A procedure for design binary circular subwavelength diffractive optical elements (DOE) is presented. In this procedure, we first generalized the design approach presented by Farn and extend Farn's techniques to include the design of binary circular subwavelength diffractive optical elements, we apply the zeroth-order effective medium theory in every subwavelength area to determine the relationship between index and the fill factor. An example is presented. The body of revolution finite difference time domain method is used to analyze responses of this DOE. The results are compared with the counterparts of its continuous profile.

Paper Details

Date Published: 5 October 2000
PDF: 5 pages
Proc. SPIE 4223, Instruments for Optics and Optoelectronic Inspection and Control, (5 October 2000); doi: 10.1117/12.401766
Show Author Affiliations
Caihua Chen, Changchun Institute of Optics and Fine Mechanics (United States)
Zhenwu Lu, Changchun Institute of Optics and Fine Mechanics (China)
Baochang Zhao, Xi'an Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4223:
Instruments for Optics and Optoelectronic Inspection and Control
Guang Hui Wei; Sheng Liu, Editor(s)

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