Mixed Fano-SP resonant absorption of THz electromagnetic waves in a photonic resonator contacting with a metal film |
| |
Affiliation: | Institute of Semiconductor Physics of NAS of Ukraine, Nauki Prsp., 45, Kyiv – 03028, Ukraine |
| |
Abstract: | In terahertz frequency region, we have investigated theoretically the correlation between spectra of a free photonic structure and that deposited on a metal for several models of metal. It was found that for quasi-normal incidence of p-polarized electromagnetic field the presence of metal generates narrow spectral wells in the middle of reflection windows existing in a free photonic crystal. Quite another manifestation of metal-resonator inter-influence takes place at incident angles exceeding the Brewster angle when reflection spikes coincide with modes of photonic crystal resonator and they are absent throughout the stopband areas. The effects are strongly depended on polarization, number of periods and angle of incidence. |
| |
Keywords: | Photonic crystal resonator Metal quenching of irradiation Photonic bandgap structure Fano resonance Surface plasmon resonance |
本文献已被 ScienceDirect 等数据库收录! |