title: Diffractive flat panel solar concentrators of a novel design.
abstract: A novel design for a flat panel solar concentrator is presented which is based on a light guide with a grating applied on top that diffracts light into total internal reflection. By combining geometrical and diffractive optics the geometrical concentration ratio is optimized according to the principles of nonimaging optics, while the thickness of the device is minimized due to the use of total internal reflection.
authors.forename: Ties M
authors.initials: TM
authors.lastname: de Jong
authors.forename: Dick K G
authors.initials: DK
authors.lastname: de Boer
authors.forename: Cees W M
authors.initials: CW
authors.lastname: Bastiaansen