Affiliation: Technical University of Braunschweig
- Impact of the contact metallization on the performance of photoconductive THz antennasN Vieweg
Institute of High Frequency Technology, TU Braunschweig, Germany
Opt Express 16:19695-705. 2008..However, Ti/Au contacts have a higher thermal stability which might be advantageous if high system stability is called for...
- Molecular properties of liquid crystals in the terahertz frequency rangeNico Vieweg
Institute for High Frequency Technology, University of Braunschweig, Braunschweig 38106, Germany
Opt Express 18:6097-107. 2010..On this basis, we calculate the main polarizabilities along the longitudinal and transverse axis and link the observed terahertz properties to the molecular structure of the liquid crystals...
- Liquid crystal based electrically switchable Bragg structure for THz wavesRafal Wilk
Institute for High Frequency Technology, Braunschweig, Germany
Opt Express 17:7377-82. 2009..It exhibits the 60 GHz broad stop-band around 300 GHz which can be removed by reorienting liquid crystal molecules in an external electric field. Our first proof-of-principle experiments agree very well with transfer matrix calculations...