Modeling and Simulation of a high sensitivity biosensor in a periodic array of metal nanorod pair by using the finite element method
Journal Title: JOURNAL OF ADVANCES IN MATHEMATICS - Year 2014, Vol 5, Issue 3
Abstract
We numerically investigated the surface plasmon resonances (SPRs) in a periodic array of solid-silver/silver-shell nanorod pair structures for sensing applications by employing a finite-element method. The proposed periodic array of silver-shell nanorod pair structure is composed of a pair of metallic nanorod with a dielectric hole (DH) that interact with a transverse magnetic mode incident plane wave, which includes the investigation of particle particle interaction. We demonstrate that near-field coupling of the periodic array of solid-silver/silver-shell ranorod pair structures result in a periodic lattice of SPR modes with enhanced field intensities and transmittance dips. The influences of different illumination wavelengths, periods, transmittance spectra, energy flows and electric stream lines, DHs, electric field component distributions and total field intensities, charge density distribution, and the model of the induced local field of the periodic array of solid-silver/silver-shell nanorod pair on "bonding"modes are discussed in our simulations. The proposed structure exhibits a redshifted localized SPR that can be modified over an extended wavelength range of peak resonances and transmittance dips by varying the relative permittivities in DHs and the period of the periodic nanostructure. Simulation results show that the SPR modes are very sensitive to the relative permittivities change in the surrounding materials, which could be used as highly sensitive sensors.
Authors and Affiliations
Yuan-Fong Chau
Keywords
Related Articles
- EP ID EP651316
- DOI 10.24297/jam.v5i3.6841
- Views 161
- Downloads 0
SOLVABILITY OF BOUNDARY VALUE PROBLEMS WITH TRANSMISSION CONDITIONS FOR DISCONTINUOUS ELLIPTIC DIFFERENTIAL OPERATOR EQUATIONS
We consider nonlocal boundary value problems which includes discontinuous coefficients elliptic differential operator equations of the second order and nonlocal boundary conditions together with boundary-transmission c...
SS-Coprime Modules
Let R be a commutative ring with unity and M is a unitary left R-module . In this paper , we introduce the notion of strongly S-coprime modules, where M is called strongly S-coprime briefly (SS-Coprime) if for each r R ,...
FERMAT'S LAST THEOREM: ALGEBRAIC PROOF
In 1995, A, Wiles announced, using cyclic groups, a proof of Fermat's Last Theorem, which is stated as follows: If is an odd prime and x; y; z are relatively prime positive integers, then . In this note, a proof of...
A probability space of continuous-time discrete value stochastic process with Markov property
Getting acquainted with the theory of stochastic processes we can read the following statement: "In the ordinary axiomatization of probability theory by means of measure theory, the problem is to construct a sigma-algebr...
COMMON FIXED POINT THEOREM IN INTUITIONITIC FUZZY METRIC SPACES
Fixed point is an important branch of analysis to enhance its literature the prime .The object of this paper is to prove the common fixed point theorems for six self mapping taking the pair of maps as coincidentally comm...