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Proceedings Paper

Transition from paraxial to nonparaxial domain in diffractive optics
Author(s): Jari Pekka Turunen; Frank Wyrowski; Eero Noponen
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Paper Abstract

We discuss the efficiency of diffractive elements in the intermediate region between the paraxial domain and the resonance domain of diffractive optics. In the paraxial domain, the efficiency is bounded from above by an upper limit provided by scalar diffraction theory. In the resonance domain, this limit can be exceeded. The transition that takes place as the element leaves the paraxial domain is illustrated by numerical simulations with exact electromagnetic diffraction theory, and interpreted with physical arguments. Our evidence indicates that the efficiency can rise substantially above the paraxial upper bound only if the signal effectively fills a half-space.

Paper Details

Date Published: 17 June 1994
PDF: 10 pages
Proc. SPIE 2152, Diffractive and Holographic Optics Technology, (17 June 1994); doi: 10.1117/12.178086
Show Author Affiliations
Jari Pekka Turunen, Helsinki Univ. of Technology (Finland)
Frank Wyrowski, Berlin Institute of Optics (Germany)
Eero Noponen, Helsinki Univ. of Technology (Finland)


Published in SPIE Proceedings Vol. 2152:
Diffractive and Holographic Optics Technology
Ivan Cindrich; Sing H. Lee, Editor(s)

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