Spherical aberration and the electromagnetic field in high-aperture systems | Zendy

Taco D. Visser | Zendy; S. H. Wiersma | Zendy

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Spherical aberration and the electromagnetic field in high-aperture systems

Author(s) -

Taco D. Visser,

S. H. Wiersma

Publication year - 1991

Publication title -

journal of the optical society of america a

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.803

H-Index - 158

eISSN - 1520-8532

pISSN - 1084-7529

DOI - 10.1364/josaa.8.001404

Subject(s) - poynting vector , physics , optics , spherical aberration , aperture (computer memory) , diffraction , wavefront , contrast transfer function , asymmetry , geometrical optics , electromagnetic field , lens (geology) , near and far field , magnetic field , quantum mechanics , acoustics

We present a model for investigating the effect of spherical aberration on the electromagnetic field and the Poynting vector in the focal region of a high-aperture lens. The fields are obtained by integrating the vector equivalent of Kirchhoff's boundary integral over the aberrated wave front. We have studied both diffraction patterns and transfer functions. Our results differ significantly from those obtained by classical focusing the- ory. For example, the intensity peak is narrower. Also the intensiy distribution is no longer symmetric on the optical axis. A similar asymmetry has recently been measured.

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