Enhanced properties of indium thin films by stacking with platinum nanosheets designed for advanced terahertz/ gigahertz applications

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dc.authoridAtef Fayez Qasrawi / 0000-0001-8193-6975en_US
dc.authorscopusidAtef Fayez Qasrawi / 6603962677en_US
dc.authorwosidAtef Fayez Qasrawi / R-4409-2019en_US
dc.contributor.authorAlmotiri, R. A.
dc.contributor.authorQasrawi, Atef Fayez
dc.date.accessioned2023-04-17T07:07:46Z
dc.date.available2023-04-17T07:07:46Z
dc.date.issued2023en_US
dc.departmentİstinye Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractHerein stacked layers of metallic indium (150 nm) and platinum (50–250 nm) thin films are fabricated as a terahertz/gigahertz filters. Indium thin films are produced by the thermal evaporation technique under a vacuum pressure of 10? 5 mbar and coated with Pt nanosheets using the ionic coating technique. It is observed that Pt nanosheets increased the light transmittance and reflectance in In/Pt films. In/Pt stacked layers displayed lower; dielectric constant, optical conductivity and terahertz cutoff frequency values as compared indium thin slabs. In/Pt stacked layers is found appropriate as tunable terahertz filters. In addition, the Drude-Lorentz analyses on these optical layers have shown that In/Pt stacks exhibit plasmon frequency values (8.7–17.3 GHz) that make them suitable for 5G/6G technology as band filters. The optical conductivity parameters including the drift mobility, free electron density and scattering time at femtosecond level are also determined. As a confirming technique an ac signals propagating with driving frequency in the range of 0.01–0.50 GHz is imposed between the terminals of In/Pt stacked layers. It is shown that the microwave cutoff frequency is widely tunable achieving values of 40 GHz at driving frequency of 0.50 GHz. The features of the In/Pt stacked layers are promising as they show properties of tunable terahertz/gigahertz filters.en_US
dc.identifier.citationAlmotiri, R. A., & Qasrawi, A. F. (2023). Enhanced properties of indium thin films by stacking with platinum nanosheets designed for advanced terahertz/gigahertz applications. Optical and Quantum Electronics, 55(5), 478.en_US
dc.identifier.doi10.1007/s11082-023-04752-6en_US
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85152635692en_US
dc.identifier.startpage478en_US
dc.identifier.urihttps://doi.org/10.1007/s11082-023-04752-6
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3900
dc.identifier.volume55en_US
dc.identifier.wosWOS:001010628500004en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorQasrawi, Atef Fayez
dc.language.isoenen_US
dc.publisherOptical and Quantum Electronicsen_US
dc.relation.ispartofOptical and Quantum Electronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectIn/Pten_US
dc.subjectOptical Conductionen_US
dc.subjectDielectric Dispersionen_US
dc.subjectTerahertzen_US
dc.subjectMicrowaveen_US
dc.subject6G Technologyen_US
dc.titleEnhanced properties of indium thin films by stacking with platinum nanosheets designed for advanced terahertz/ gigahertz applicationsen_US
dc.typeArticleen_US

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