Dispersive spectrum splitting systems rely on optical elements that use diffraction or refraction for spectral separation. After passing through an array of the dispersive optical system (DOS) module composed of a grating structure and dispersive prisms below a. Thorlabs' Ultrafast Broadband Beamsplitters offer a 20:80, 50:50, 80:20, or 90:10 (R:T) beamsplitting ratio over the 600 - 1500 nm wavelength range, or a 50:50 (R:T) beamsplitting ratio over the 1000 - 2000 nm wavelength range. They are designed to be used with p-polarized light incident at 45° and. We report the experimental demonstration of a low-cost paradigm for photovoltaic power generation that utilizes a prismatic Fresnel-like lens to simultaneously concentrate and separate sunlight into laterally spaced spectral bands. The optical element is designed using geometric optics and optical. Shockley and Queisser have shown that systems based on single junction PV cells are limited to a system efficiency of 33%.
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