TUNABLE TERAHERTZ FISHNET METAMATERIAL

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TUNABLE TERAHERTZ FISHNET METAMATERIAL

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dc.contributor.advisor Wang, Wei-Chih en_US
dc.contributor.author Chang, Cheng-Ling en_US
dc.date.accessioned 2012-09-13T17:36:34Z
dc.date.issued 2012-09-13
dc.date.submitted 2012 en_US
dc.identifier.other Chang_washington_0250E_10228.pdf en_US
dc.identifier.uri http://hdl.handle.net/1773/20810
dc.description Thesis (Ph.D.)--University of Washington, 2012 en_US
dc.description.abstract A tunable fishnet metamaterial (TFMM) was designed and fabricated to prove its potential in controlling terahertz radiation (0.1 THz~10THz). A model to retrieve refractive index of single layer fishnet metamaterial (SLFM) was developed and applied to study the tunable frequency range of TFMM. Reference planes that define the material boundaries of SLFM and multilayer fishnet metamaterial (MLFM) were investigated to show that the material property of fishnet metamaterial is a function of layers. The issue of applying current model to MLFM was discussed. The TFMM infiltrated with a voltage-controllable polymer dispersed liquid crystal (PDLC) was fabricated and tested by terahertz time domain spectroscopy (THz-TDS). An encapsulating technique that covers PDLC with a polyimide layer (skin layer) was applied to prevent volatile liquid crystal from escaping the PDLC and enable the deposition of metal layer. Concept of tuning TFMM infiltrated with PDLC (PDLC-TFMM) was proven by measuring the frequency shift in the reflection coefficient. The negative refractive index of PDLC-TFMM was achieved. The reliability issue of current PDLC-TFMM was discussed. en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.subject Active; Fishnet; Metamaterial; Terahertz; Tunable en_US
dc.subject.other Engineering en_US
dc.subject.other Electrical engineering en_US
dc.subject.other Mechanical engineering en_US
dc.subject.other Mechanical engineering en_US
dc.title TUNABLE TERAHERTZ FISHNET METAMATERIAL en_US
dc.type Thesis en_US
dc.embargo.terms Delay release for 2 years -- then make Open Access en_US
dc.embargo.lift 2014-09-03T17:36:34Z


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