Subwavelength-grating-induced wavefront aberrations: A case study

Karlton Crabtree; Russell A. Chipman

doi:10.1364/AO.46.004549

Subwavelength-grating-induced wavefront aberrations: A case study

Karlton Crabtree, Russell A. Chipman

Optical Sciences

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The on-axis wavefront aberrations of a one-dimensional subwavelength- grating antireflection coating on an f/1.7 lens surface are shown to be small with noticeable contributions of defocus, astigmatism, and piston. The astigmatism is 0.02 wave, and the magnitude of the piston approaches one wave peak-to-valley. The difference in aberrations between orthogonally polarized wavefronts, or the retardance aberration, shows 0.01 wave of astigmatismlike variation and more than 0.01 wave of retardance-induced defocuslike variation. A small coupling between polarization states occurs in the form of the familiar Maltese cross, yielding a maximum of 3% coupling in the four diagonal edges of the pupil.

Original language	English (US)
Pages (from-to)	4549-4554
Number of pages	6
Journal	Applied optics
Volume	46
Issue number	21
DOIs	https://doi.org/10.1364/AO.46.004549
State	Published - Jul 20 2007

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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title = "Subwavelength-grating-induced wavefront aberrations: A case study",

abstract = "The on-axis wavefront aberrations of a one-dimensional subwavelength- grating antireflection coating on an f/1.7 lens surface are shown to be small with noticeable contributions of defocus, astigmatism, and piston. The astigmatism is 0.02 wave, and the magnitude of the piston approaches one wave peak-to-valley. The difference in aberrations between orthogonally polarized wavefronts, or the retardance aberration, shows 0.01 wave of astigmatismlike variation and more than 0.01 wave of retardance-induced defocuslike variation. A small coupling between polarization states occurs in the form of the familiar Maltese cross, yielding a maximum of 3% coupling in the four diagonal edges of the pupil.",

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AB - The on-axis wavefront aberrations of a one-dimensional subwavelength- grating antireflection coating on an f/1.7 lens surface are shown to be small with noticeable contributions of defocus, astigmatism, and piston. The astigmatism is 0.02 wave, and the magnitude of the piston approaches one wave peak-to-valley. The difference in aberrations between orthogonally polarized wavefronts, or the retardance aberration, shows 0.01 wave of astigmatismlike variation and more than 0.01 wave of retardance-induced defocuslike variation. A small coupling between polarization states occurs in the form of the familiar Maltese cross, yielding a maximum of 3% coupling in the four diagonal edges of the pupil.

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Subwavelength-grating-induced wavefront aberrations: A case study

Abstract

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