Apertureless near field measurements with a metallic tip are performed in the terahertz frequency range. Lateral scans are recorded for different time delays within a terahertz pulse. The forward...
Hydration dynamics of oriented DNA films investigated by time-domain terahertz spectroscopy (2007)
Kistner, Caroline, André, Alexander, Fischer, Theo, Thoma, Arne, Janke, Christof, Bartels, Albrecht, ...
The B to A conformational transition of highly oriented DNA films due to a hydration change is observed with time-domain terahertz spectroscopy. Wet-spun films of calf thymus and salmon DNA are...
Ultrafast time-domain spectroscopy based on high-speed asynchronous optical sampling (2007)
Bartels, Albrecht, Cerna, Roland, Kistner, Caroline, Thoma, Arne, Hudert, Florian, Janke, Christof, ...
High-speed asynchronous optical sampling (ASOPS) is a novel technique for ultrafast time-domain spectroscopy (TDS). It employs two mode-locked femtosecond oscillators operating at a fixed repetition...
High-resolution THz spectrometer with kHz scan rates (2006)
Bartels, Albrecht, Thoma, Arne, Janke, Christof, Dekorsy, Thomas, Dreyhaupt, Andre, Winnerl, Stephan, ...
We demonstrate a rapid scanning high-resolution THz spectrometer capable of acquiring THz field transients with 1 ns duration without mechanical delay line. The THz spectrometer is based on two 1-GHz...