Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/38751
Title: Theoretical modeling and experimental demonstration of surface plasmon resonance based sensing using phase detection
Authors: Ding, Zejun
Keywords: DRNTU::Engineering::Materials::Material testing and characterization
Issue Date: 2010
Abstract: This report presents a simplified theoretical modeling and experimental demonstration of surface plasmon resonance based sensing. Two groups of simulation were carried out based on two different configurations using phase shift between p and s polarizations. In order to achieve system optimization, effects of different experimental parameters including gold film thickness, linker layer thickness, sample thickness, incident angle and different gold film permittivity were investigated. Results suggest that the gold thickness should be within 45nm to 50nm to achieve optimize refractive index (RI) resolution of 2.416 x 10-6 unit (RIU), while linker layer and sample thickness greater than 200nm does not affect the sensing. However narrow abrupt phase shift range is a limitation. Experiment was then done based on the optimized theoretical model. Chloride solution was used as sample, obvious phase shift was observed as sample concentration increased. Additional experiment on SPR based imaging was also demonstrated.
URI: http://hdl.handle.net/10356/38751
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MSE Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
Ding_Zejun_FYP.pdf
  Restricted Access
761.36 kBAdobe PDFView/Open

Page view(s)

261
checked on Sep 26, 2020

Download(s)

8
checked on Sep 26, 2020

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.