Programme

O.15 -- Oral, NCTP-39

Date: Wednesday, 30-07-2014

Time: 11h20 - 11h40

Influence of nonlinearity on the optical Tamm plasmon polaritons in one dimensional photonic crystal structures.

Phung Duy Khuong

Institute of Physics

We study one-dimensional metal/photonic crystal structures for the excitation of optical Tamm plasmon polaritons, using the invariant imbedding method generalized to nonlinear media, we calculate the reflectance, transmittance and the electromagnetic field distribution inside media exactly. We find that the optical Tamm plasmon polaritons can be observed when the incident angle smaller than the critical angle of total internal reflection. We also find that there is strongly enhanced electromagnetic field intensity compared to those due to normal surface plasmon excitations. The field intensity is enhanced thousand times than at the metal-photonic crystal interface. The optical bistability can be observed for very small values of the intensity of incident wave. We hope that this effect can be designed optical devices which work at much lower threshold light intensities.

Presenter: Phung Duy Khuong