Characteristics of a waveguide mode in a trilayer Ag/SiO(2)/Au plasmonic thermal emitter.
A suitably designed trilayer Ag/SiO(2)/Au thermal emitter can be used as the narrow bandwidth infrared light source. The thermal radiation generated in the SiO(2) layer resonates between the two metal films and results in not only the Ag/SiO(2) surface plasmon polaritons but also the waveguide mode (WM) in the Ag/SiO(2)/Au structure owing to the thick SiO(2) layer. This study investigated the influence of dielectric thickness on energy dispersion relations and derived the theoretical dispersion relation, which fit well with experimental results. This WM light source can be applied in the area of gas sensing and probing the response of the animal cells and plants to infrared radiation.
Department of Electrical Engineering, Graduate Institute of Electronics Engineering, National Taiwan University,Taipei, Taiwan, China.
Yu-Wei
YW
Jiang
Yi-Ting
YT
Wu
Ming-Wei
MW
Tsai
Pei-En
PE
Chang
Dah-Ching
DC
Tzuang
Yi-Hen
YH
Ye
Si-Chen
SC
Lee