Search Results - "Demirhan, Y"
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Investigation of electron beam lithography effects on metal-insulator transition behavior of vanadium dioxide
Published in Physica scripta (01-11-2017)“…Vanadium dioxide (VO2) shows metal-insulator phase transition at nearly 68 °C. This metal-insulator transition (MIT) in VO2 leads to a significant change in…”
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Comparative study of annealing and gold dopant effect on DC sputtered vanadium oxide films for bolometer applications
Published in Optical and quantum electronics (01-07-2017)“…Vanadium oxide (VO x ) thin film has been widely used for IR detectors and it is one of the promising materials for THz detectors due to its high temperature…”
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Emission of the THz waves from large area mesas of superconducting Bi2Sr2CaCu2O8+δ by the injection of spin polarized current
Published in Physica. C, Superconductivity (01-08-2013)“…► THz emission was achieved from as-grown mesas due to injection of spin polarized current. ► Bump in return branch of I–V curve was observed due to radiation…”
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Journal Article Conference Proceeding -
4
A simulation study on power comparisons for group sequential tests of non-parametric statistics
Published in Journal of statistical computation and simulation (01-06-2009)“…In this article, a group sequential test (GST) of non-parametric statistics for survival data is briefly reviewed. An asymptotic joint distribution of the test…”
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Area dependence and influence of crystal inhomogeneity on superconducting properties of Bi2212 mesa structures
Published in Vacuum (01-10-2015)“…The rapid increase in applications of terahertz waves requires new techniques to obtain continuous wave terahertz sources. Mesa structures fabricated from…”
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Thin film like terahertz bolometric detector on Bi2212 single crystal
Published in Optical and quantum electronics (01-06-2016)“…In this study, we developed a microbolometer chip fabricated from high temperature superconducting Bi 2 Sr 2 CaCu 2 O 8+δ (Bi2212) single crystals for the…”
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Metal mesh filters based on Ti, ITO and Cu thin films for terahertz waves
Published in Optical and quantum electronics (01-02-2016)“…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…”
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Emission of the THz waves from large area mesas of superconducting Bi(2)Sr(2)CaCu(2)O(8+ gamma ) by the injection of spin polarized current
Published in Physica. C, Superconductivity (15-08-2013)“…Rectangular Au/Co/Au/Bi(2)Sr(2)CaCu(2)O(8+ gamma ) (Bi2212) mesa structures with large areas and high thicknesses were fabricated on as-grown Bi2212 single…”
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Reactive ion beam etching of superconducting Bi2212 by Ta/PR and PR'/Ta/PR masks for the generation of THz waves
Published in 2009 International Workshop Terahertz and Mid Infrared Radiation: Basic Research and Practical Applications (01-11-2009)“…Generation of powerful THz radiation from intrinsic Josephson Junctions (IJJs) of Bi 2 Sr 2 CaCu 2 O 8+¿ (Bi2212) may require mesas with large lateral…”
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Conference Proceeding -
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Fabrication of double mesa structures by E-beam lithography from high temperature superconducting Bi2Sr2CaCu2O8+δ (Bi2212) for powerful terahertz emission
Published in 2011 XXXth URSI General Assembly and Scientific Symposium (01-08-2011)“…We work on a frequency tunable solid state device to meet the needs of continuous, coherent, powerful terahertz emission sources that fill practically…”
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Conference Proceeding -
11
Spin polarized tunneling in large area mesas of superconducting Bi2Sr2CaCu2O8+δ for the generation of the THz waves
Published in 2009 International Workshop Terahertz and Mid Infrared Radiation: Basic Research and Practical Applications (01-11-2009)“…Rectangular intrinsic Josephson junction mesa structures of superconducting Bi 2 Sr 2 CaCu 2 O 8+Δ (Bi2212) can be used as a source of continuous, coherent and…”
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Conference Proceeding -
12
Terahertz wave emission from layered superconductors: Interferometer measurements
Published in 2011 XXXth URSI General Assembly and Scientific Symposium (01-08-2011)“…Rectangular Bi 2 Sr 2 CaCu 2 O 8+δ (Bi2212) mesa structures were fabricated on as-grown Bi2212 single crystal superconductors using standard photolithography…”
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Conference Proceeding