Iterative design of diffractive elements made of lossy material
View/
Self archived version
published versionDate
2018Unique identifier
10.1364/JOSAA.35.000045Metadata
Show full item recordMore information
Self-archived article
Citation
Verhoeven Antonie D. Wyrowski Frank. Turunen Jari. (2018). Iterative design of diffractive elements made of lossy material. Journal of the Optical Society of America A, 35 (1) , 45-54. 10.1364/JOSAA.35.000045.Rights
© Optical Society of America
Licensed under
© 2017 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved
Abstract
Diffractive surface relief elements made of lossy materials exhibit phase-dependent absorption, which not only reduces the efficiency but also distorts the signal if the surface profile is realized on the basis of a phase-only design. We introduce an extension of the iterative Fourier transform algorithm, which accounts for such phase-dependent absorption, and present examples of its application to the design of diffractive beam splitters. The operator required for taking absorption into account is chosen to maximize the efficiency of the found design.
