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Title: Metal mesh filters based on Ti, ITO and Cu thin films for terahertz waves
Authors: Demirhan, Yasemin
Alaboz, Hakan
Özyüzer, Lütfi
Nebioğlu, Mehmet Ali
Takan, Taylan
Altan, Hakan
Sabah, Cumali
Keywords: Bandpass filters
Frequency selective surfaces
Metal mesh filters
Terahertz radiation
Thin films
Issue Date: 1-Feb-2016
Publisher: Springer Verlag
Source: Demirhan, Y., Alaboz, H., Özyüzer, L., Nebioğlu, M. A., Takan, T., Altan, H., and Sabah, Cı. (2016). Metal mesh filters based on Ti, ITO and Cu thin films for terahertz waves. Optical and Quantum Electronics, 48(2), 1-11. doi:10.1007/s11082-016-0427-z
Abstract: In this study, we have investigated the spectral performance of resonant terahertz (THz) bandpass filters which were produced from thin films with a metal-mesh shape. The aforementioned filters were fabricated from titanium, copper and indium tin oxide thin films on fused silica substrates by UV lithography with an array of cross-shaped apertures. Since the mesh period, cross-arm length and its width specify the spectral characteristics of the filters, we were able to reveal the performance of these filters experimentally using both a THz time domain spectrometer and a Fourier transform infrared spectrometer. A commercial electromagnetic simulation software, CST microwave studio, was used to verify the experimental data. The transmission of the filters are in the range 20–55 % at their relevant center frequencies. To our knowledge this study is the first to show that fabricated patterns based on ITO thin films can be used to filter THz radiation.
ISSN: 0306-8919
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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