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Optics Letters

Optics Letters


  • Vol. 36, Iss. 15 — Aug. 1, 2011
  • pp: 2836–2838

Nested aplanats for practical maximum-performance solar concentration

Alex Goldstein, Daniel Feuermann, Gary D. Conley, and Jeffrey M. Gordon  »View Author Affiliations

Optics Letters, Vol. 36, Issue 15, pp. 2836-2838 (2011)

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Dual-mirror aplanats provide efficient, ultracompact, high-irradiance solar concentration and were recently developed for concentrator photovoltaics. However, inherent limitations place the focus inside the optic. This mandates a terminal dielectric concentrator to extract concentrated sunlight to the solar cell outside the optic, and an optical bond to the cell. Can a modified design strategy site the focus outside the optic (eliminating the need for an extractor and optical bond) without compromising concentrator compactness, low shading losses, or pragmatic manufacturability? We show how judiciously nested dual-mirror aplanats can satisfy all these objectives, with raytrace simulations confirming performance tantamount to the best conventional aplanats.

© 2011 Optical Society of America

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(220.1770) Optical design and fabrication : Concentrators
(350.6050) Other areas of optics : Solar energy

ToC Category:
Optical Design and Fabrication

Original Manuscript: May 31, 2011
Revised Manuscript: June 26, 2011
Manuscript Accepted: June 26, 2011
Published: July 21, 2011

Alex Goldstein, Daniel Feuermann, Gary D. Conley, and Jeffrey M. Gordon, "Nested aplanats for practical maximum-performance solar concentration," Opt. Lett. 36, 2836-2838 (2011)

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