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.
© 2005 Optical Society of America
Optical Design and Fabrication
Roland Winston and Jeffrey M. Gordon, "Planar concentrators near the étendue limit," Opt. Lett. 30, 2617-2619 (2005)