scholarly journals Second-Order Nonlinearity Assisted by Dual Surface Plasmon Resonance Modes in Perforated Gold Film

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Renlong Zhou ◽  
Guozheng Nie ◽  
Lingxi Wu ◽  
Qiong Liu ◽  
Suxia Xie ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gold Film ◽  
Second Harmonic ◽  
Second Order ◽  
Difference Frequency ◽  
Square Lattice ◽  
Plasmon Resonances ◽  
Second Order Nonlinearity

We have studied analytically the reflection assisted with surface plasmon through the square lattice perforated gold film. Under the excitation of the external electromagnetic field with one or two different frequencies, the second-order nonlinearity exists in this noncentrosymmetric metal-based metamaterial. We employed the two surface plasmon resonances modes with different lattice periods. With the excitation of two different plasmon resonances modes, the strong local field induces an expected increase of the second-order nonlinearity including second harmonic generation as well as the sum (difference) frequency generation. The field distributions results also indicate that the enhancement of sum frequency signals and difference frequency signals strongly depends on surface plasmon resonance effect.

scholarly journals Second-Order Nonlinearity in Triangular Lattice Perforated Gold Film due to Surface Plasmas Resonance

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Renlong Zhou ◽  
Xiaoshuang Chen ◽  
Yingyi Xiao ◽  
Bingju Zhou ◽  
Lingxi Wu ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Triangular Lattice ◽  
Gold Film ◽  
Second Harmonic ◽  
Resonance Effect ◽  
Second Order ◽  
Square Lattice ◽  
Frequency Wave ◽  
Surface Plasmas ◽  
Second Order Nonlinearity

We have studied the excitation second-order nonlinearity through a triangular lattice perforated gold film instead of square lattice in many papers. Under the excitation of surface plasmas resonance effect, the second order nonlinearity exists in the noncentrosymmetric split-ring resonators arrays. Reflection of fundamental frequency wave through a triangular lattice perforated gold film is obtained. We also described the second harmonic conversion efficiencies in the second order nonlinear optical process with the spectra. Moreover, the electric field distributions of fundamental frequency above the gold film region are calculated. The light propagation through the holes results in the enhancement of the second order nonlinearity including second harmonic generation as well as the sum (difference) frequency generation.

Influence of surface roughness on surface plasmon resonance phenomenon of gold film

2016 ◽  
Vol 14 (4) ◽  
pp. 042401-42403 ◽  
Author(s):  
Zhitao Yang Zhitao Yang ◽  
Changjian Liu Changjian Liu ◽  
Yachen Gao Yachen Gao ◽  
Jiyu Wang Jiyu Wang ◽  
and Wenlong Yang and Wenlong Yang
Keyword(s):  
Surface Roughness ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gold Film ◽  
Resonance Phenomenon

scholarly journals Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection

2019 ◽  
Vol 9 (7) ◽  
pp. 1480 ◽  
Author(s):  
Zhenlin Chen ◽  
Kunlin Han ◽  
Ya-Nan Zhang
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gold Film ◽  
Mercury Ion ◽  
Great Promise ◽  
Water Safety ◽  
Ion Sensor ◽  
Sensitive Film ◽  
Resonance Sensor

This paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sensor is demonstrated to be 2110.33 nm/RIU. Then, a multi-layer CS/PAA film is fixed on the surface of the gold film as a mercury ion sensitive film to form a reflective SPR fiber mercury ion sensor. Experimental results demonstrate that the sensor can be used to detect different concentrations of mercury ions with a high sensitivity of 0.5586 nm/μM and good specificity and repeatability. Therefore, the reflective SPR fiber mercury ion sensor shows great promise for future applications of environmental monitoring and drinking water safety.

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