New planar design to concentrate sunlight using unique diffraction properties of subwavelength gratings is presented. Concentration ratio >10X is achieved suitable for medium-concentration solar systems.
© 2011 OSA
B. Pesala, "Planar Solar Concentrators using Subwavelength Gratings," in Frontiers in Optics 2011/Laser Science XXVII, OSA Technical Digest (Optical Society of America, 2011), paper FWZ3.
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