Fabrication of metamaterial filters for terahertz wave applications by e-beam patterning
Demirhan, Yasemin, author.

Fabrication of metamaterial filters for terahertz wave applications by e-beam patterning

Demirhan, Yasemin, author.

Yazar Ek Girişi
Demirhan, Yasemin, author.

Fiziksel Tanımlama
xvii, 92 leaves: illustrarions, charts;+ 1 computer laser optical disc.

In the electromagnetic spectrum, terahertz (THz) radiation falls into the region among microwaves and the far-IR. The unique properties of superconducting materials allow them to be utilized in a number of ways for THz device applications. In the first part of this thesis, the spectral performance of THz bandpass filters were produced from titanium, copper and indium tin oxide thin films with a metal-mesh shape on fused silica substrates by uv lithography were investigated. For metamaterial filter fabrication, Bi2Sr2CaCu2O8+x thin films were deposited by DC and RF magnetron sputtering system on saphirre and MgO substrates. After thin film characterizations, it is obtained that the films were not in single phase and could not be used for filter fabrication. A new, unique fourcross shaped metamaterial THz filter was designed and fabricated from both gold thin films and YBa2Cu3O7-d high Tc superconducting thin films. The designed fourcross shaped rectangular filter structure consists of periodic metallic rings where strip lines are located at the sides of the ring. CST Microwave Studio, is used to design and optimize the metamaterial filter structures. To investigate the temperaturedependent resonance behavior and confirm the measurements, simulations are carried out at temperatures above and well below Tc. Fourcross metamaterial filters are fabricated by using e-beam lithography and ion beam etching techniques. The resonance switching of the transmission spectra was investigated by lowering the temperature below the critical transition temperature. This novel fourcross filter holds great potential for active, tunable and lowloss THz devices for imaging, sensing, and detection applications.

Konu Başlığı
Terahertz technology.

Yazar Ek Girişi
Özyüzer, Lütfi

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Material Science and Engineering.

Tek Biçim Eser Adı
Thesis (Doctoral)--İzmir Institute of Technology: Material Science and Engineering.
İzmir Institute of Technology: Material Science and Engineering--Thesis (Doctoral).

Elektronik Erişim
Access to Electronic Versiyon.

LibraryMateryal TürüDemirbaş NumarasıYer Numarası
IYTE LibraryTezT001682TK7877 .D37 2017