Broadband spectral splitting of white light via 2D diffractive optical elements

Authors: YALIN BAŞAY, EMRE YÜCE

Abstract: An effective way of increasing the efficiency of solar cells is to spectrally split sunlight into several frequencies and absorb each frequency using appropriate photovoltaic materials. In this study, we establish a method to show spectral splitting of broadband solar light via iteratively optimized diffractive optical elements. We develop an algorithm in order to calculate 2D holographic patterns that focus two different frequencies to designated positions.

Keywords: Spectral splitting, diffraction, solar cells

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