Bimetallic Au-Ag nanorod dimers as plasmonic biosensors
This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017.
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BRAC University
2017
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| Acceso en línea: | http://hdl.handle.net/10361/8654 |
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10361-86542019-09-30T03:15:06Z Bimetallic Au-Ag nanorod dimers as plasmonic biosensors Rahman, Md Ahnaf Hossain, Aishik Hossain, Mohammed Shadman Das, Avijit Department of Electrical and Electronic Engineering, BRAC University Au-Ag nanorod Finite Difference Time Domain (FDTD) Plasmonic biosensors 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. 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. Md Ahnaf Rahman Aishik Hossain Mohammed Shadman Hossain B. Electrical and Electronic Engineering 2017-12-20T05:30:21Z 2017-12-20T05:30:21Z 2017 2017-08 Thesis ID 12221114 ID 13321014 ID 12221094 http://hdl.handle.net/10361/8654 en BRAC University thesis is protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. 79 pages application/pdf BRAC University |
| institution |
Brac University |
| collection |
Institutional Repository |
| language |
English |
| topic |
Au-Ag nanorod Finite Difference Time Domain (FDTD) Plasmonic biosensors |
| spellingShingle |
Au-Ag nanorod Finite Difference Time Domain (FDTD) Plasmonic biosensors Rahman, Md Ahnaf Hossain, Aishik Hossain, Mohammed Shadman Bimetallic Au-Ag nanorod dimers as 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. |
| author2 |
Das, Avijit |
| author_facet |
Das, Avijit Rahman, Md Ahnaf Hossain, Aishik Hossain, Mohammed Shadman |
| format |
Thesis |
| author |
Rahman, Md Ahnaf Hossain, Aishik Hossain, Mohammed Shadman |
| author_sort |
Rahman, Md Ahnaf |
| title |
Bimetallic Au-Ag nanorod dimers as plasmonic biosensors |
| title_short |
Bimetallic Au-Ag nanorod dimers as plasmonic biosensors |
| title_full |
Bimetallic Au-Ag nanorod dimers as plasmonic biosensors |
| title_fullStr |
Bimetallic Au-Ag nanorod dimers as plasmonic biosensors |
| title_full_unstemmed |
Bimetallic Au-Ag nanorod dimers as plasmonic biosensors |
| title_sort |
bimetallic au-ag nanorod dimers as plasmonic biosensors |
| publisher |
BRAC University |
| publishDate |
2017 |
| url |
http://hdl.handle.net/10361/8654 |
| work_keys_str_mv |
AT rahmanmdahnaf bimetallicauagnanoroddimersasplasmonicbiosensors AT hossainaishik bimetallicauagnanoroddimersasplasmonicbiosensors AT hossainmohammedshadman bimetallicauagnanoroddimersasplasmonicbiosensors |
| _version_ |
1814307401546858496 |