[EN] We propose a very compact metasurface that works as a quarter-wave plate at two
different frequencies, 1 THz and 2.2 THz. The fractional bandwidth of the first band is remarkably
32.2%, beyond the state-of-the-art
[EN] Expanding ideas from microwaves, we demonstrate experimentally a terahertz inductor by using meander-lines in a canonical extraordinary transmission (ET) hole array leading to a strong resonance¿s redshift and an ...