Open AccessFabry-Perot resonance on extraordinary transmission through one-dimensional metallic gratings with sub-wavelength under transverse electric wave excitation
Author(s) -
Yawei Wang,
Liu Ming-Li,
Renjie Liu,
Lei Hai-Na,
Tian Xiang-Long
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.024217
Subject(s) - resonance (particle physics) , wavelength , finite difference time domain method , fabry–pérot interferometer , physics , excitation , optics , transmission (telecommunications) , transverse plane , extraordinary optical transmission , dielectric , guided mode resonance , materials science , atomic physics , diffraction grating , surface plasmon polariton , optoelectronics , plasmon , surface plasmon , telecommunications , quantum mechanics , structural engineering , computer science , engineering
The transmission distribution of transverse electric wave (TE) through one-dimensional metallic gratings with sub-wavelenghth slits with dielectric added in different positions has been simulated by the FDTD (finite difference time domain) method, the extraordinary transmission can be produced at several special wavelengths. The simulation shows that the guided-mode-like resonance theory is the main reason giving rise to the first peak and the second peak. Based on the guided-mode-like resonance theory, from the Maxwell’s equations,we nade sure that the Fabry Perot resonance is the main cause producing the third peak by the effective index mehod. In a word, the guided-mode resonance theory and the Fabry-Perot-like resonance reveal the physical nature of the extraordinary transmission phenomenon which provides a complete theoretical basis for further study of the extraordinary transmission phenomenon of TE-polarized wave.