2023
DOI: 10.1088/2631-6331/acd490
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Thermally tunable vanadium-dioxide-based broadband metamaterial absorber with switchable functionality in the terahertz band

Abstract: In this paper, a thermally tunable broadband metamaterial absorber, with switchable functionality in the terahertz band, consisted of periodically arranged vanadium dioxide (VO2) and a gold film separated by a layer of polyimide is reported, which is capable of switching from absorber to reflector through the phase change property of VO2. When VO2 is in the metallic state, three near-perfect absorption peaks localized at 3.48 THz, 5.09 THz and 7.05 THz are obtained, and the combination of them gives rise to a … Show more

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“…The design of the material includes radar absorbing materials (RAMs) [12][13][14] with dielectric, electrically conductive, or magnetic particles in polymeric binders, radar absorbing structures (RASs) with fiber-reinforced composites with carbon fibers or glass fibers [15,16], and frequency selective surfaces (FSSs) [17,18] consisting of a periodic pattern made of a conductive material represented by metals using chemical etching [17][18][19], particulate composites by coating, (3D) printing, and impregnating [20][21][22][23][24][25], and textile composites with hybrid continuous glass or carbon fibers [25,26]. The additive manufacturing can be utilized to realize the material approaches for RCS reduction [22][23][24][27][28][29].…”
Section: Introductionmentioning
confidence: 99%
“…The design of the material includes radar absorbing materials (RAMs) [12][13][14] with dielectric, electrically conductive, or magnetic particles in polymeric binders, radar absorbing structures (RASs) with fiber-reinforced composites with carbon fibers or glass fibers [15,16], and frequency selective surfaces (FSSs) [17,18] consisting of a periodic pattern made of a conductive material represented by metals using chemical etching [17][18][19], particulate composites by coating, (3D) printing, and impregnating [20][21][22][23][24][25], and textile composites with hybrid continuous glass or carbon fibers [25,26]. The additive manufacturing can be utilized to realize the material approaches for RCS reduction [22][23][24][27][28][29].…”
Section: Introductionmentioning
confidence: 99%