171 citations · 373 across the 6 of their papers we have counts for
6 papers
Experimental verification of electro-refractive phase modulation in graphene
Muhammad Mohsin, Daniel Neumaier, Daniel Schall +5
Graphene has been considered as a promising material for opto-electronic devices, because of its tunable and wideband optical properties. In this work, we demonstrate electro-refra…
High On/Off Ratios in Bilayer Graphene Field Effect Transistors Realized by Surface Dopants
Bartholomaeus N. Szafranek, Daniel Schall, Martin Otto +2
The unique property of bilayer graphene to show a band gap tunable by external electrical fields enables a variety of different device concepts with novel functionalities for elect…
Electrical observation of a tunable band gap in bilayer graphene nanoribbons at room temperature
Bartholomaeus N. Szafranek, Daniel Schall, Martin Otto +2
We investigate the transport properties of double-gated bilayer graphene nanoribbons at room temperature. The devices were fabricated using conventional CMOS-compatible processes.…
Non-volatile switching in graphene field effect devices
T. J. Echtermeyer, M. C. Lemme, M. Baus +3
The absence of a band gap in graphene restricts its straight forward application as a channel material in field effect transistors. In this letter, we report on a new approach to e…
A graphene-based electrochemical switch
T. J. Echtermeyer, M. C. Lemme, M. Baus +3
Conventional field effect transistor operation in graphene is limited by its zero gap and minimum quantum conductivity. In this work, we report on controlled electrochemical modifi…
Time-resolved broadband analysis of slow-light propagation and superluminal transmission of electromagnetic waves in three-dimensional photonic crystals
J. Gomez Rivas, A. Farre Benet, J. Niehusmann +2
A time-resolved analysis of the amplitude and phase of THz pulses propagating through three-dimensional photonic crystals is presented. Single-cycle pulses of THz radiation allow m…