Planar concentrators near the étendue limit

Roland Winston, Jeffrey M. Gordon

    Research output: Contribution to journalArticlepeer-review

    73 Scopus citations


    Recently proposed aplanatic imaging designs are integrally combined with nonimaging flux boosters to produce an ultracompact planar glass-filled concentrator that performs near the étendue limit. Such optical devices are attractive for high-efficiency multijunction photovoltaics at high flux, with realistic power generation of 1 W from a 1 mm2 cell. When deployed in reverse, our designs provide collimation even for high-numerical-aperture light sources.

    Original languageEnglish
    Pages (from-to)2617-2619
    Number of pages3
    JournalOptics Letters
    Issue number19
    StatePublished - 1 Oct 2005

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics


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