Investigation of the sensitivity of H-shaped nano-grating surface plasmon resonance biosensors using rigorous coupled wave analysis

2007 ◽  
Vol 89 (2) ◽  
pp. 407-411 ◽  
Author(s):  
D. Zhang ◽  
P. Wang ◽  
X. Jiao ◽  
G. Yuan ◽  
J. Zhang ◽  
...  
2011 ◽  
Vol 211-212 ◽  
pp. 465-468
Author(s):  
De Wei Chen

Since the development almost a decade ago of the first biosensor based on surface plasmon resonance (SPR), the use of this technique has increased steadily. In this study, we theoretically investigated the sensing character of SPR sensor with reflection type metallic with Rigorous Coupled Wave Analysis (RCWA) method, and the mechanism is analyzed by the field distribution. It is found that the sensitivity of negative diffraction order, which goes higher quickly as the resonant angle increases, is much greater than that of positive diffraction order.


2013 ◽  
Vol 669 ◽  
pp. 246-249
Author(s):  
Wei Su ◽  
Gai Ge Zheng ◽  
Xiang Yin Li

We have proposed a biosensor using a one-dimensional (1D) photonic crystal with surface plasmon resonance (SPR) effect. The wavelength interrogation method has been used to study the performance of the sensor. Numerical simulations based on rigorous coupled wave analysis (RCWA) method show that the sensitivity of the optimized sensor is 137 nm/RIU (per refractive index unit).


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