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Terahertz detectors based on graphene

التفاصيل البيبلوغرافية
العنوان: Terahertz detectors based on graphene
المؤلفون: Gouider, Fathi, Salman, Majdi, Göthlich, Markus, Schmidt, Hennrik, Ahlers, Franz-J., Haug, Rolf J., Nachtwei, Georg
المصدر: Journal of Physics: Conference Series 456 (2013), Nr. 1
بيانات النشر: Institute of Physics Publishing
سنة النشر: 2013
المجموعة: Institutional Repository of Leibniz Universität Hannover
مصطلحات موضوعية: Corbino geometry, Energy ranges, Epitaxial graphene, Graphene devices, Magneto-optical, Measurements of, Terahertz detectors, Terahertz radiation, Germanium, Graphene, Magnetic fields, Terahertz waves, Silicon wafers, ddc:530, Konferenzschrift
الوصف: In this study we present magnetotransport an magnetooptical data obtained in the magnetic field range 0T < B < 7T at detectors patterned in Corbino geometry on epitaxial graphene wafer using a Ge detector. We observed the cyclotron resonance of charge carriers in these wafers by measurement of the transmission of THz wafes through the unpatterned squares (about 4 × 4mm2) of the wafers as a function of the magnetic field B applied perpendicular to the wafer. Further, we performed measurements of the photocunductivity of graphene-based devices shaped in Corbino geometry, induced by terahertz (THz) radiation generated by a p-Ge laser (emitting in the energy range 7.5meV ≤ Eph ≤ 11meV). Our photoconductivity measurement imply that graphene devices are suitable for the detection of terahertz radiation.
نوع الوثيقة: article in journal/newspaper
اللغة: English
تدمد: 17426588
Relation: http://dx.doi.org/10.15488/3775; https://www.repo.uni-hannover.de/handle/123456789/3809
DOI: 10.15488/3775
الاتاحة: https://www.repo.uni-hannover.de/handle/123456789/3809
https://doi.org/10.15488/3775
Rights: CC BY 3.0 Unported ; https://creativecommons.org/licenses/by/3.0/ ; frei zugänglich
رقم الانضمام: edsbas.68549DC3
قاعدة البيانات: BASE
الوصف
تدمد:17426588
DOI:10.15488/3775