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Broadband planar multilayer absorber tuned by VO2 phase transition

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A dynamically tunable planar multiplayer absorber is demonstrated using the VO2 phase-change material. As the VO2 phase transition is thermally triggered, a modulation depth of 72.6% is achieved over a broad wavelength range from 4-8.2µm.

© 2017 Optical Society of America

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