Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 012011 |
| Fachzeitschrift | Journal of Physics: Conference Series |
| Jahrgang | 456 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 5 Aug. 2013 |
| Veranstaltung | 20th International Conference on the Application of High Magnetic Fields in Semiconductor Physics, HMF 2012 - Chamonix Mont Blanc, Frankreich Dauer: 22 Juli 2012 → 27 Juli 2012 |
Abstract
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.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Journal of Physics: Conference Series, Jahrgang 456, Nr. 1, 012011, 05.08.2013.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Terahertz detectors based on graphene
AU - Gouider, Fathi
AU - Salman, Majdi
AU - Göthlich, Markus
AU - Schmidt, Hennrik
AU - Ahlers, Franz J.
AU - Haug, Rolf
AU - Nachtwei, Georg
PY - 2013/8/5
Y1 - 2013/8/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84885036748&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/456/1/012011
DO - 10.1088/1742-6596/456/1/012011
M3 - Conference article
AN - SCOPUS:84885036748
VL - 456
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012011
T2 - 20th International Conference on the Application of High Magnetic Fields in Semiconductor Physics, HMF 2012
Y2 - 22 July 2012 through 27 July 2012
ER -