S
Stephan Winnerl
Researcher at Helmholtz-Zentrum Dresden-Rossendorf
Publications - 164
Citations - 4583
Stephan Winnerl is an academic researcher from Helmholtz-Zentrum Dresden-Rossendorf. The author has contributed to research in topics: Terahertz radiation & Graphene. The author has an hindex of 32, co-authored 156 publications receiving 4027 citations. Previous affiliations of Stephan Winnerl include University of Konstanz & University of Regensburg.
Papers
More filters
Journal ArticleDOI
High-intensity terahertz radiation from a microstructured large-area photoconductor
TL;DR: In this paper, a planar large-area photoconducting emitter for impulsive generation of terahertz (THz) radiation is presented, which consists of an interdigitated electrode metal-semiconductor-metal (MSM) structure which is masked by a second metallization layer isolated from the MSM electrodes.
Journal ArticleDOI
Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point
Stephan Winnerl,Milan Orlita,Milan Orlita,Paulina Plochocka,Piotr Kossacki,Marek Potemski,Torben Winzer,Ermin Malic,Andreas Knorr,Mike Sprinkle,Claire Berger,W. A. de Heer,Harald Schneider,Manfred Helm +13 more
TL;DR: The experiments complemented by microscopic modeling reveal that the carrier relaxation is significantly slowed down as the photon energy is tuned to values below the optical-phonon frequency; however, owing to the presence of hot carriers, optical-Phonon emission is still the predominant relaxation process.
Journal ArticleDOI
CMOS Integrated Antenna-Coupled Field-Effect Transistors for the Detection of Radiation From 0.2 to 4.3 THz
Sebastian Boppel,Alvydas Lisauskas,Martin Mundt,Dalius Seliuta,Linas Minkevičius,Irmantas Kašalynas,Gintaras Valušis,Martin Mittendorff,Stephan Winnerl,Viktor Krozer,Hartmut G. Roskos +10 more
TL;DR: In this paper, a field effect transistor-based terahertz detector for the operation at discrete frequencies spanning from 0.2 to 4.3 THz is presented.
Journal ArticleDOI
Long lifetimes of quantum-dot intersublevel transitions in the terahertz range
E. A. Zibik,E. A. Zibik,Thomas Grange,Thomas Grange,B. A. Carpenter,N. E. Porter,R. Ferreira,G. Bastard,D. Stehr,Stephan Winnerl,Manfred Helm,Huiyun Liu,Huiyun Liu,M. S. Skolnick,Luke R. Wilson +14 more
TL;DR: The studies pave the way for quantum-dot terahertz device development, providing the fundamental knowledge of carrier relaxation times required for optimum device design.
Journal ArticleDOI
Ultrafast graphene-based broadband THz detector
Martin Mittendorff,Stephan Winnerl,Josef Kamann,Jonathan Eroms,Dieter Weiss,Harald Schneider,Manfred Helm +6 more
TL;DR: In this article, an ultrafast graphene-based detector is presented, working in the THz range at room temperature, with a logarithmic-periodic antenna coupled to a graphene flake that is produced by exfoliation on SiO2.