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A Broadband, Omnidirectional Absorber Based on a Slot Waveguide Grating on a Metallic Substrate

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We proposed a broadband, omnidirectional absorber based on a slot waveguide grating on a metallic substrate. Average absorption of ~90% was achieved with bandwidth of 1100 nm over a wide angle range (0 – 80°).

© 2012 Optical Society of America

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