Details

Autor(en) / Beteiligte

• Chen, Junxue
• Wang, Pei
• Ming, Hai
• Lakowicz, Joseph R
• Zhang, Douguo

Titel

Fano resonance and polarization transformation induced by interpolarization coupling of Bloch surface waves

Ist Teil von

• Physical review. B, 2019-03, Vol.99 (11), Article 115420

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2019

Link zum Volltext

Quelle

American Physical Society

Beschreibungen/Notizen

• In this work, the resonant coupling behaviors between the transverse-electric (TE) and transverse-magnetic (TM) Bloch surface waves (BSWs) on a dielectric multilayer have been theoretically studied. Due to the different penetration depths in the dielectric multilayer, the TM BSWs and TE BSWs can act as the radiative and dark electromagnetic modes, respectively. By using a rectangular grating on the dielectric multilayer, both Rabi splitting and Fano resonance phenomena based on the coupling of the two BSW modes were demonstrated, through tuning the period of the grating and the azimuthal angle of the incoming wave. Furthermore, by using the temporal coupled-mode theory, we show that the anti-Hermitian coupling between the two BSW modes contributes to the enhanced diffraction and the huge polarization transformation efficiency of incoming waves in the weak coupling regime.