138 citations · 293 across the 7 of their papers we have counts for
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High intensity study of THz detectors based on field effect transistors
Dmytro B. But, Christoph Drexler, Mykola V. Sakhno +6
Terahertz power dependence of the photoresponse of field effect transistors, operating at frequencies from 0.1 to 3 THz for incident radiation power density up to 100 kW/cm^2 was s…
Probing of electromagnetic fields on atomic scale by photoelectric phenomena in graphene
Peter Olbrich, Christoph Drexler, Leonid E. Golub +8
We report on the observation of the reststrahl band assisted photocurrents in epitaxial graphene on SiC excited by infrared radiation. The peculiar spectral dependence for frequenc…
Spin-polarized electric currents in diluted magnetic semiconductor heterostructures induced by terahertz and microwave radiation
P. Olbrich, C. Zoth, P. Lutz +11
We report on the study of spin-polarized electric currents in diluted magnetic semiconductor (DMS) quantum wells subjected to an in-plane external magnetic field and illuminated by…
Helicity sensitive terahertz radiation detection by field effect transistors
Christoph Drexler, Nina Dyakonova, Peter Olbrich +10
Terahertz light helicity sensitive photoresponse in GaAs/AlGaAs high electron mobility transistors. The helicity dependent detection mechanism is interpreted as an interference of…
Terahertz radiation driven chiral edge currents in graphene
J. Karch, C. Drexler, P. Olbrich +14
We observe photocurrents induced in single layer graphene samples by illumination of the graphene edges with circularly polarized terahertz radiation at normal incidence. The photo…
Diluted magnetic semiconductor heterostructure AlSb/InAs/ZnMnTe with giant Zeeman effect for two dimensional electrons in InAs
Ya. V. Terent'ev, C. Zoth, V. V. Bel'kov +11
A new approach to the growth of diluted magnetic semiconductors with two dimensional electron gas in InAs quantum well has been developed. The method is based on molecular-beam epi…
Spin polarized electric currents in semiconductor heterostructures induced by microwave radiation
C. Drexler, V. V. Bel'kov, B. Ashkinadze +10
We report on microwave (mw) radiation induced electric currents in (Cd,Mn)Te/(Cd,Mg)Te and InAs/(In,Ga)As quantum wells subjected to an external in-plane magnetic field. The curren…