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Daylight window based on the nano-disorder inspired by Morpho butterflies’ coloration

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Abstract

Some species of Morpho butterflies reflect interfered brilliant blue, which is contradictory to the interference effect due to low angular dependence. This coloration is typically attributed to the disordered nanostructure of the species scales. Applying this reflective principle into light transmission, we discover a new daylight window with high transmittance, wide angular spread, and low color dispersion. The effectiveness of this window was verified through numerical simulations. The optical conditions were investigated by changing the structural parameters, and the required conditions were clarified. This concept realizes an ideal window based on a new principle.

© 2021 Optical Society of America

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Supplementary Material (1)

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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