We proposed and experimentally investigated a two-ring-resonator composed planar hybrid metamaterial（MM）, in which the spectra of guided mode resonance（GMR） and Fano resonance or EIT-like response induced by coher...We proposed and experimentally investigated a two-ring-resonator composed planar hybrid metamaterial（MM）, in which the spectra of guided mode resonance（GMR） and Fano resonance or EIT-like response induced by coherent interaction between MM resonance and GMR can be easily controlled by the size of the two rings in the terahertz regime.Furthermore, a four-ring-resonator composed MM for polarization-insensitive GMRs was demonstrated, where GMRs of both TE and TM modes are physically attributed to the diffraction coupling by two ±45° tilting gratings. Such kind of device has great potential in ultra-sensitive label-free sensors, filters, or slow light based devices.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61377108 and 61405182)
文摘We proposed and experimentally investigated a two-ring-resonator composed planar hybrid metamaterial（MM）, in which the spectra of guided mode resonance（GMR） and Fano resonance or EIT-like response induced by coherent interaction between MM resonance and GMR can be easily controlled by the size of the two rings in the terahertz regime.Furthermore, a four-ring-resonator composed MM for polarization-insensitive GMRs was demonstrated, where GMRs of both TE and TM modes are physically attributed to the diffraction coupling by two ±45° tilting gratings. Such kind of device has great potential in ultra-sensitive label-free sensors, filters, or slow light based devices.
