Title :
Investigation of Diffusion Processes by THz Time-Domain Reflection Spectroscopy
Author :
Obradovic, Jelena ; Hirsch, Ole ; Collins, James H P ; Mantle, Mick D. ; Gladden, Lynn F.
Author_Institution :
Univ. of Cambridge, Cambridge
Abstract :
Liquid diffusion in polymers has been studied for the first time using terahertz (THz) time-domain reflectance spectroscopy. We show that both the position and movement of the liquid diffusion front through the polymer as a function of time can be quantified. These data are validated by comparison with the same quantities measured using magnetic resonance imaging (MRI).
Keywords :
diffusion; polymers; submillimetre wave spectra; MRI data comparison; liquid diffusion process; magnetic resonance imaging; polymers; solvent-polymer system; terahertz time-domain reflection spectroscopy; Diffusion processes; Laboratories; Magnetic materials; Magnetic resonance imaging; Material properties; Polymers; Reflection; Solvents; Spectroscopy; Time domain analysis;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368686
