178 citations · 450 across the 8 of their papers we have counts for
8 papers
Engineering tunable strain fields in suspended graphene by microelectromechanical systems
Jens Sonntag, Matthias Goldsche, Tymofiy Khodkov +5
Here, we present a micro-electromechanical system (MEMS) for the investigation of the electromechanical coupling in graphene and potentially related 2D materials. Key innovations o…
Graphene-Quantum Dots Hybrid Photodetectors with Low Dark-Current Readout
D. De Fazio, B. Uzlu, I. Torre +10
Graphene-based photodetectors have shown responsivities up to 10A/W and photoconductive gains up to 10 electrons per photon. These photodetectors rely on a highly absorbi…
Tunable coupling of two mechanical resonators by a graphene membrane
G. J. Verbiest, M. Goldsche, J. Sonntag +4
Coupled nanomechanical resonators are interesting for both fundamental studies and practical applications as they offer rich and tunable oscillation dynamics. At present, the mecha…
Far-field Excitation of Single Graphene Plasmon Cavities with Ultra-compressed Mode-volumes
Itai Epstein, David Alcaraz, Zhiqin Huang +9
Acoustic-graphene-plasmons (AGPs) are highly confined electromagnetic modes, carrying large momentum and low loss in the mid-infrared/Terahertz spectra. Owing to their ability to c…
Detecting Ultrasound Vibrations by Graphene Resonators
G. J. Verbiest, J. N. Kirchhof, J. Sonntag +3
Ultrasound detection is one of the most important nondestructive subsurface characterization tools of materials, whose goal is to laterally resolve the subsurface structure with na…
Tailoring mechanically-tunable strain fields in graphene
M. Goldsche, J. Sonntag, T. Khodkov +7
There are a number of theoretical proposals based on strain engineering of graphene and other two-dimensional materials, however purely mechanical control of strain fields in these…
Tunable mechanical coupling between driven microelectromechanical resonators
G. J. Verbiest, D. Xu, M. Goldsche +5
We present a microelectromechanical system, in which a silicon beam is attached to a comb-drive actuator, that is used to tune the tension in the silicon beam, and thus its resonan…
Direct observation of a gate tunable band-gap in electrical transport in ABC-trilayer graphene
T. Khodkov, I Khrapach, M. F. Craciun +1
Few layer graphene systems such as Bernal stacked bilayer and rhombohedral (ABC-) stacked trilayer offer the unique possibility to open an electric field tunable energy gap. To dat…