Abstract
The excitation of resonant eigenmodes in two-dimensional metallic photonic crystals by incident terahertz pulses is both experimentally and numerically investigated. Transmission experiments are in excellent agreement with numerical calculations of the crystals’ photonic band structures and internal electromagnetic field patterns. The structures show large photonic band gaps in the terahertz spectral range and are highly polarization selective. At the resonant frequencies, transmittance is extraordinarily high despite the high metal filling factor.
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