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Adjustable Q-Factor Infrared Absorption with Germanium Nanohole Metasurfaces

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Abstract

The absorption ~90% at the communication wavelength was demonstrated by germanium nanohole metasurface with subwavelength thickness. By tuning the different hole depth in Ge metasurface, we can get the tunable Q-factors from 116 to 236.

© 2022 The Author(s)

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Poster Presentation

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