ABSTRACT:

Reflection and transmission modes are studied in a surface plasmon resonance (SPR) sensor, where a nanohole-array-patterned gold film is deposited on a glass substrate, and the analyte in an aqueous medium is bound onto the patterned gold film. The reflection (transmission) mode means that light illuminates the structure from the analyte (substrate) side, and the detection is fixed at the analyte side. The two modes are studied by calculating absorption (and transmission) spectra and optical field distributions of the sensor. This study shows that both modes can excite the SPR on the analyte/gold interface, which is useful for sensing. However, the optical field distribution at the resonant wavelength is different for the two modes, and the effect is dependent on the gold film thickness. Comparing the sensing performance, the reflection mode gives larger resonant optical field enhancements (32 as compared with 22), but the transmission mode uses much thinner gold films (60 nm as compared with 150 nm). The optical power flow is analyzed to understand the fundamental difference between the two modes. These findings are particularly useful to guide the design of metallic nanostructure-based plasmonic sensing systems.


Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here


PROJECT TITLE :Narrowband Reflection From Weakly Coupled Cladding-Modulated Bragg GratingsABSTRACT:A complementary metal-oxide-semiconductor-compatible cladding-modulated grating style with weakly coupled corrugations on long
PROJECT TITLE :Statistical Modeling of the Reflection Symmetry Metric for Sea Clutter in Dual-Polarimetric SAR DataABSTRACT:Reflection symmetry is an intrinsic property used to tell apart man-made metallic targets and sea litter
PROJECT TITLE :Cancellation of Specular Reflection by Shadow RadiationABSTRACT:Interference of the specular reflection and therefore the shadow radiation is analyzed in the sphere scattered by an oblong cylinder located on an
PROJECT TITLE :Feasibility of Code-Level Altimetry Using Coastal BeiDou Reflection (BeiDou-R) SetupsABSTRACT:With the event of the Chinese BeiDou satellite navigation system, the applications of BeiDou-mirrored (BeiDou-R) signals
PROJECT TITLE :Automated Detection of Reflection Hyperbolas in Complex GPR Images With No A Priori Knowledge on the MediumABSTRACT:During this paper, we propose an automatic detection algorithm for well- and sick-formed ground-penetrating

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry