Bahrami, Mehdi and Goncharov, Alexander V. (2012) Geometry-invariant GRIN lens: iso-dispersive contours. Biomedical Optics Express, 3(7), pp. 1684-1700. ISSN (online) 2156-7085

Abstract

A dispersive model of a gradient refractive index (GRIN) lens is introduced based on the idea of iso-dispersive contours. These contours have constant Abbe number and their shape is related to iso-indicial contours of the monochromatic geometry-invariant GRIN lens (GIGL) model. The chromatic GIGL model predicts the dispersion throughout the GRIN structure by using the dispersion curves of the surface and the center of the lens. The analytical approach for paraxial ray tracing and the monochromatic aberration calculations used in the GIGL model is employed here to derive closed-form expressions for the axial and lateral color coefficients of the lens. Expressions for equivalent refractive index and the equivalent Abbe number of the homogeneous equivalent lens are also presented and new aspects of the chromatic aberration change due to aging are discussed. The key derivations and explanations of the GRIN lens optical properties are accompanied with numerical examples for the human and animal eye GRIN lenses.

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Official URL:	http://dx.doi.org/10.1364/BOE.3.001684
Item Type:	Article
Additional Information:	This paper was published in Biomedical Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/boe/abstract.cfm?uri=boe-3-7-1684. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. This work was supported by Science Foundation Ireland [grant number 07/IN.1/1906]
Research Area:	Research Areas > Biological sciences Research Areas > Physics
Faculty, School or Research Centre:	Faculty of Science, Engineering and Computing (until 2017)
Related URLs:	PubMed
Date Deposited:	22 Feb 2013 11:10
Last Modified:	29 Sep 2022 10:34
DOI:	https://doi.org/10.1364/BOE.3.001684
URI:	https://eprints.kingston.ac.uk/id/eprint/24705

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