5 papers
Improving terahertz-detection sensitivity of 8x8 FET arrays through liquid-nitrogen cooling in a compact low-noise cryostat
Jakob Holstein, Nicholas K. North, Arne Hof +10
We show that the sensitivity of antenna-coupled field-effect transistors (FETs) to terahertz (THz) radiation improves continuously with decreasing temperature. The noise-equivalent…
2D hydrodynamic simulation of TeraFETs beyond the gradual-channel approximation for transient, large-signal or ultrahigh-frequency simulations
Florian Ludwig, Hartmut G. Roskos, Raul Borsche
In the past decade, detection of THz radiation by plasma-wave-assisted frequency mixing in antenna-coupled field-effect transistors (TeraFETs) -- implemented in various semiconduct…
8x8 Patch-Antenna-Coupled TeraFET Detector Array for Terahertz Quantum-Cascade-Laser Applications
Jakob Holstein, Nicholas K. North, Michael D. Horbury +10
Monolithically integrated, antenna-coupled field-effect transistors (TeraFETs) are rapid and sensitive detectors for the terahertz range (0.3-10~THz) that can operate at room tempe…
Si Superstrate Lenses on Patch-Antenna-Coupled TeraFETs: NEP Optimization and Frequency Fine-Tuning
Anastasiya Krysl, Dmytro B. But, KÄstutis Ikamas +4
This paper presents a study on performance optimization and resonant frequency modification of terahertz detectors by the use of hyper-hemispherical silicon superstrate lenses. The…
Modeling of antenna-coupled Si MOSFETs in the Terahertz Frequency Range
Florian Ludwig, Jakob Holstein, Anastasiya Krysl +2
We report on the modeling and experimental characterization of Si CMOS detectors of terahertz radiation based on antenna-coupled field-effect transistors (TeraFETs). The detectors…