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We present two designs of robust, easy to manufacture metamaterial-based films of sub-wavelength thickness capable of full absorption of the incident terahertz (THz) radiation at certain frequencies. Both designs can be either made polarization sensitive, or have 90deg rotation symmetry, which works equally well for waves of any polarization provided the incident angle is zero. All our designs work...
We present terahertz metamaterials fabricated on large-area, free-standing thin (les1 mum) silicon nitride membranes with the aim of reducing dielectric losses, enhancing metamaterial sensing capabilities, and enabling flexible and conformable designs.
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