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Updated: May 27, 2026
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Characterization of the surface plasmon polariton band gap in an Ag/SiO2/Ag T-shaped periodical structure
Cheng-Wen Cheng1, Mohammed Nadhim Abbas, Min-Hsiung Shih
1Department of Physics, National Taiwan University, Taipei 10617, Taiwan.
Abstract:
In this study, the localized surface plasmon polariton (LSPP) band gap of an Ag/SiO(2)/Ag asymmetric T-shaped periodical structure is demonstrated and characterized. The Ag/SiO(2)/Ag asymmetric T-shaped periodical structure was designed and fabricated to exhibit the LSPP modes in an infrared wavelength regime, and its band gap can be manipulated through the structural geometry. The LSPP band gap was observed experimentally with the absorbance spectra and its angle dependence characterized with different incident angles. Such a T-shaped structure with a LSPP band gap can be widely exploited in various applications, such as emitters and sensors.
