# Hollow carbon spheres in microwaves: Bio inspired absorbing coating

Abstract : The electromagnetic response of a heterostructure based on a monolayer of hollow glassy carbon spheres packed in 2D was experimentally surveyed with respect to its response to microwaves, namely, the Ka-band (26-37GHz) frequency range. Such an ordered monolayer of spheres mimics the well-known moth-eye''-like coating structures, which are widely used for designing anti-reflective surfaces, and was modelled with the long-wave approximation. Based on the experimental and modelling results, we demonstrate that carbon hollow spheres may be used for building an extremely lightweight, almost perfectly absorbing, coating for Ka-band applications.
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Journal articles
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https://hal.univ-lorraine.fr/hal-01496633
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Submitted on : Monday, March 27, 2017 - 4:47:10 PM
Last modification on : Thursday, January 6, 2022 - 12:06:03 PM

### Citation

D. Bychanok, Sijin Li, A. Sanchez-Sanchez, G. Gorokhov, P. Kuzhir, et al.. Hollow carbon spheres in microwaves: Bio inspired absorbing coating. Applied Physics Letters, American Institute of Physics, 2016, 108 (1), ⟨10.1063/1.4938537⟩. ⟨hal-01496633⟩

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