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17 June 1994 Transition from paraxial to nonparaxial domain in diffractive optics
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jari Pekka Turunen, Frank Wyrowski, and Eero Noponen "Transition from paraxial to nonparaxial domain in diffractive optics", Proc. SPIE 2152, Diffractive and Holographic Optics Technology, (17 June 1994); https://doi.org/10.1117/12.178086
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