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Capasso Group Designs Metasurface Polarization Optics

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AUTUM C. PYLANT, NEWS EDITOR, [email protected]

CAMBRIDGE, Mass., Aug. 9, 2018 — The Capasso Group at Harvard University's John A. Paulson School of Engineering and Applied Sciences (SEAS) is focusing much of its research on metasurfaces and metasurface polarization optics. The metasurfaces are made of titanium dioxide and consist of an array of polarization-sensitive pillars (nanofins) that redirect the incident light. Unlike previous arrays, which were uniform in size, the nanofins vary in orientation, height, and width, depending on the encoded images. This hologram is one of two different holographic images encoded in a metasurface that can be unlocked separately...Read full article

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