Terahertz Localization and Filtering Effects in Two-Dimensional Disordered Scattering Structures - Details

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Abstract：

In　this　work,　we　investigate　photon　localization　and　filtering　effects　in　disordered　scattering　structures　which　might　be　used　for　future　on-chip　terahertz　integrated　systems.　Through　a　reverse-design　platform　based　on　a　discrete　binary　particle　swarm　optimization　(BPSO)　algorithm,　a　2-D　periodic　dielectric　cylindrical　photonic　crystal　was　transformed　into　a　disordered　scattering　structure.　Appropriate　objective　and　figure　of　merit　(FOM)　functions　are　defined　in　order　to　achieve　terahertz　filtering　function　based　on　Anderson　localization.　The　filters　are　in　the　bandgap　range　of　0.177–0.303　THz,　with　a　FWHM　bandwidth　of　0.01　THz.　We　found　that　photon　localization　in　disordered　scattering　structures　is　caused　by　coupling　and　resonance　between　adjacent　microcavities.　IEEE

Keyword：

Dielectrics Disordered scattering structures Electric fields Lattices Location awareness Photonic band gap photonic crystal Photonics reverse-design terahertz Time-domain analysis

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[ 1 ] [Chen Y.]School of Mechanical Engineering and Automation, Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou University, Fuzhou, China
[ 2 ] [Xiong S.]School of Mechanical Engineering and Automation, Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou University, Fuzhou, China
[ 3 ] [Huang F.]School of Mechanical Engineering and Automation, Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou University, Fuzhou, China
[ 4 ] [Guo C.]School of Mechanical Engineering and Automation, Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou University, Fuzhou, China
[ 5 ] [Chen Y.]School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
[ 6 ] [Wang X.]School of Mechanical Engineering and Automation, Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou University, Fuzhou, China
[ 7 ] [Ju X.]Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, and the Engineering Research Center of Smart Distribution Grid Equipment, Fuzhou University, Fuzhou, China

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IEEE Transactions on Plasma Science

ISSN： 0093-3813

Year： 2024

Issue： 10

Volume： 52

Page： 1-4

1 . 3 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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