RLE Recent Papers

Optical Broadband Angular Selectivity (Science)

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Yichen Shen, Dexin Ye, Ivan Celanovic, Steven G. Johnson, John D. Joannopoulos, Marin Soljačić

DOI: 10.1126/science.1249799

Light selection based purely on the angle of propagation is a long-standing scientific challenge. In angularly selective systems, however, the transmission of light usually also depends on the light frequency. We tailored the overlap of the band gaps of multiple one-dimensional photonic crystals, each with a different periodicity, in such a way as to preserve the characteristic Brewster modes across a broadband spectrum. We provide theory as well as an experimental realization with an all–visible spectrum, p-polarized angularly selective material system. Our method enables transparency throughout the visible spectrum at one angle—the generalized Brewster angle—and reflection at every other viewing angle.

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Optical Broadband Angular Selectivity (Science)

Professor Marin Soljačić

Professor John D. Joannopoulos

Professor Steven G. Johnson

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