What are the future directions in metamaterial-based absorbers for wide band petaherz band applications?
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Future directions in metamaterial-based absorbers for wideband terahertz band applications include the development of absorbers with wideband absorption, polarization insensitivity, and good stability at wide incident angles. These absorbers can be designed using unpatterned resistive-sheet and water layers, modified split-ring resonators, or TS-shaped electrical resonators. The absorptivity of these designs can be over 90% from 162 GHz to 1.5 THz with a relative bandwidth of up to 161% . Another design achieves absorption efficiencies of 99.88%, 99.72%, and 96.41% at three absorption peaks in the X- and Ku-frequency bands . Additionally, a metamaterial-based absorber achieves more than 99% absorption over a bandwidth of 11.10 GHz from 9.77 to 20.87 GHz . Furthermore, a simple design based on metamaterials provides two perfect absorption regions with absorption peaks averaging 99.98% and the possibility of producing a broadband absorber for terahertz frequencies . These absorbers can be used in applications such as electromagnetic shielding, sensors, energy harvesting, and protection from electromagnetic waves .
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01 Dec 2022 | The provided paper does not mention future directions in metamaterial-based absorbers for wide band petaherz band applications. |
| The provided paper does not mention future directions in metamaterial-based absorbers for wide band petahertz band applications. | |
| The provided paper does not mention future directions in metamaterial-based absorbers for wide band petahertz band applications. | |
| The provided paper does not mention future directions in metamaterial-based absorbers for wide band petaherz band applications. | |
| The provided paper does not mention future directions in metamaterial-based absorbers for wide band petahertz band applications. |
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