Propagation Of Thin Annular Scalar Field Distributions

Victor L. Gamiz

doi:10.1117/12.932348

26 February 1982 Propagation Of Thin Annular Scalar Field Distributions

Victor L. Gamiz

Proceedings Volume 0294, New Methods for Optical, Quasi-Optical, Acoustic, and Electromagnetic Synthesis; (1982) https://doi.org/10.1117/12.932348
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

Numerical propagation of scalar fields within thin annuli over short distances demands very high sampling density when employing techniques which evaluate the Fresnel-Kirchhoff integral. Previous work on using asymptotic expansion methods has been limited to field distributions which display a high degree of azimuthal symmetry. This paper describes an extension of the approach to more asymmetric field distributions. The resolution requirements for this technique are discussed and some numerical results are presented. The problem of propagating thin annular scalar field distributions over short distances lends itself to very high fresnel number configurations and consequently requires high resolution sample density. The fresnel number is defined as

Citation Download Citation

Victor L. Gamiz "Propagation Of Thin Annular Scalar Field Distributions", Proc. SPIE 0294, New Methods for Optical, Quasi-Optical, Acoustic, and Electromagnetic Synthesis, (26 February 1982); https://doi.org/10.1117/12.932348

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