Journal
OPTICS LETTERS
Volume 39, Issue 23, Pages 6624-6627Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.006624
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- Israeli Science Foundation
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We present a new concept for a broadband coherent perfect absorber (CPA), utilizing the properties of white-light cavities. The designed structure attains coherent absorption over a wide spectrum (40 nm), overcoming the single-frequency limitation of conventional CPAs. A closed form analytic description is presented, supplemented by finite difference time-domain simulations for Si-based devices, demonstrating flat, wide-band power absorption. A new integrated-optics-based pulse absorber/terminator and optical modulator based on these devices are proposed and analyzed. (C) 2014 Optical Society of America
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