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    • Thesis & Design Report, BSc (Electrical and Electronic Engineering)
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    •   BracU IR
    • BSRM School of Engineering
    • Department of Electrical and Electronic Engineering (EEE)
    • Thesis & Design Report, BSc (Electrical and Electronic Engineering)
    • View Item
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    Bimetallic Au-Ag nanorod dimers as plasmonic biosensors

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    12221114,13321014,12221094_EEE.pdf (2.277Mb)
    Date
    2017-08
    Publisher
    BRAC University
    Author
    Rahman, Md Ahnaf
    Hossain, Aishik
    Hossain, Mohammed Shadman
    Metadata
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    URI
    http://hdl.handle.net/10361/8654
    Abstract
    Abstract Fano resonance, discovered by Italian-American physicist Ugo Fano, is a general wave phenomenon and is seen throughout many areas of engineering and physics. It is a kind of resonant scattering occurrence that results in an asymmetrical line shape. This unbalance is created due to interference between a resonant and a background scattering process. In the field of plasmonic nanostructures, Fano resonance has potential applications in bio-sensing and nonlinear optoelectronics. In this report, we study the Fano resonance in heterogeneous Au-Ag nanorod pairs (dimers). Finite Difference Time Domain (FDTD) method is used to solve Maxwell’s equations and calculate the absorption, scattering, and electric field spectrum in both near-field and far-field regions. The consequent Fano line-shape can be used to sense biologically interesting molecules such as a protein or a cell. Further electrodynamics characterization and calculations show that the resonance originates from the interference of a narrow quadrupolar and a wide quadrupolar plasmon mode of a nanorod.
    Keywords
    Au-Ag nanorod; Finite Difference Time Domain (FDTD); Plasmonic biosensors
     
    Description
    This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017.
     
    Includes bibliographical references (page 76-79).
     
    Cataloged from PDF version of thesis.
    Department
    Department of Electrical and Electronic Engineering, BRAC University
    Type
    Thesis
    Collections
    • Thesis & Design Report, BSc (Electrical and Electronic Engineering)

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