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Proceedings Paper

Field method for dielectric concentrator design
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Paper Abstract

Field method, also called geometrical vector flux field method, is a well established technique to design concentrators and in general nonimaging optical systems. The method is based on building reflective concentrators with the geometry of field lines, these concentrators do not disturb the flux field and become ideal. In this paper we study the properties of surfaces orthogonal to the field vector J. For rotational symmetric systems J is orthogonal to its curl, then exist a family of surfaces orthogonal to the lines of J, surfaces of constant pseudopotential. From the definition of J, pseudopotential surfaces can be interpreted as surfaces of maximum flux density and can play an important role in the design of nonimaging systems. We study refractive concentrators with the geometry of pseudopotential surfaces. Dielectric material modifies the field lines and then the geometry of the system, including compactness and reflective parts, it also introduce total internal reflection which must be considered in the design. We apply this concept to study hyperbolic concentrator modified with pseudopotential refractive optics and we shown that it achieves the theoretical limit of concentration.

Paper Details

Date Published: 21 September 2011
PDF: 7 pages
Proc. SPIE 8170, Illumination Optics II, 817003 (21 September 2011); doi: 10.1117/12.896761
Show Author Affiliations
Angel García-Botella, Univ. Politécnica de Madrid (Spain)
Antonio A. Fernández-Balbuena, Univ. Complutense de Madrid (Spain)
Daniel Vázquez, Univ. Complutense de Madrid (Spain)

Published in SPIE Proceedings Vol. 8170:
Illumination Optics II
Tina E. Kidger; Stuart David, Editor(s)

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