Application of terahertz spectroscopy to time-dependent chemical-physical phenomena.
We present here a "proof of concepts" experiment that has been realized to show that time-dependent phenomena can be successfully studied in the terahertz region in a non pump-probe configuration. We have built-up an original analytical setup that has allowed following the evaporation of a deuterated water droplet cast on a CVD diamond substrate simultaneously in the near-middle infrared region and in the terahertz range. We have used a synchrotron light source in the terahertz region and a conventional thermal source in the infrared range. The results demonstrate that it is possible to study time-dependent phenomena simultaneously in the middle and terahertz ranges monitoring the entire chemical-physical process that occurs in the time domain of minutes.
Innocenzi
Plinio
P
Laboratorio di Scienza dei Materiali e Nanotecnologie, D.A.P., Universita di Sassari, CR-INSTM, Palazzo Pou Salid, Piazza Duomo 6, 07041 Alghero (Sassari), Italy.
Malfatti
Luca
L
Piccinini
Massimo
M
Sali
Diego
D
Schade
Ulrich
U
Marcelli
Augusto
A