Iterative design of diffractive elements made of lossy material
Tiedosto(t)
Rinnakkaistallenteen versio
published versionPäivämäärä
2018Tekijä(t)
Verhoeven Antonie D
Wyrowski Frank
Turunen Jari
Yksilöllinen tunniste
10.1364/JOSAA.35.000045Metadata
Näytä kaikki kuvailutiedotLisätietoa
Rinnakkaistallenne
Viittaus
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.Oikeudet
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Tiivistelmä
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.