Optimization of 2D photonic crystal waveguide using displacement and narrowing technique
This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2013.
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BRAC University
2013
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| 在線閱讀: | http://hdl.handle.net/10361/2493 |
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10361-2493 |
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10361-24932019-09-29T05:42:53Z Optimization of 2D photonic crystal waveguide using displacement and narrowing technique Sharif, Nashad Alam, Md. Mahbub Belal Bhuian Department of Electrical and Electronic Engineering, BRAC University Photonic Crystal This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2013. Cataloged from PDF version of thesis report. Includes bibliographical references (page 81-83). In this thesis, an approach to analyze PhC structures has been developed. This approach is based on the displacement and narrowing technique. The motive is to design and optimize the desired photonic crystal waveguides and to optimize the transmission loss. Firstly, a Z -shape, a Y-shape and a Mach Zehnder photonic crystal waveguide is designed and then the designs are optimized applying the displacement and narrowing technique. The displacement method allows altering positions of certain PhC rods/atoms, thus breaking the periodicity of the rods, which is known as the displacement of the PhC rods. The narrowing technique is mainly applied to alter the characteristics of the PhC rods/atoms, which basically implies that, it allows altering the shape or pattern of the PhC rods by changing its radius, width and other certain parameters. So basically, the parameters of the PhC rods have been modified according to the requirements. Then, the PhC waveguides have been fine-tuned by displacing these narrowed rods in the bending regions of the designed PhC waveguides. The resulting wave propagation through the optimized waveguide showed that relatively small design areas were enough to yield the wanted improvement in efficiency and the numerical results obtained have shown much improved transmission. The design has been realized in a gallium-arsenide photonic crystal structure. The whole design and simulation process including PhC band gap simulation and wave propagation analysis is done using the software RSOFT. Nashad Sharif Md. Mahbub Alam B. Electrical and Electronic Engineering 2013-05-28T06:58:17Z 2013-05-28T06:58:17Z 2013 2013-04-27 Thesis ID 09221223 ID 09221228 http://hdl.handle.net/10361/2493 BRAC University thesis are 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. application/pdf BRAC University |
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Brac University |
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Institutional Repository |
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Photonic Crystal |
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Photonic Crystal Sharif, Nashad Alam, Md. Mahbub Optimization of 2D photonic crystal waveguide using displacement and narrowing technique |
| description |
This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2013. |
| author2 |
Belal Bhuian |
| author_facet |
Belal Bhuian Sharif, Nashad Alam, Md. Mahbub |
| format |
Thesis |
| author |
Sharif, Nashad Alam, Md. Mahbub |
| author_sort |
Sharif, Nashad |
| title |
Optimization of 2D photonic crystal waveguide using displacement and narrowing technique |
| title_short |
Optimization of 2D photonic crystal waveguide using displacement and narrowing technique |
| title_full |
Optimization of 2D photonic crystal waveguide using displacement and narrowing technique |
| title_fullStr |
Optimization of 2D photonic crystal waveguide using displacement and narrowing technique |
| title_full_unstemmed |
Optimization of 2D photonic crystal waveguide using displacement and narrowing technique |
| title_sort |
optimization of 2d photonic crystal waveguide using displacement and narrowing technique |
| publisher |
BRAC University |
| publishDate |
2013 |
| url |
http://hdl.handle.net/10361/2493 |
| work_keys_str_mv |
AT sharifnashad optimizationof2dphotoniccrystalwaveguideusingdisplacementandnarrowingtechnique AT alammdmahbub optimizationof2dphotoniccrystalwaveguideusingdisplacementandnarrowingtechnique |
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1814307449389187072 |