Title :
Continuous-wave terahertz spectroscopic imaging at over 1 THz for pharmaceutical applications
Author :
Ajito, K. ; Song, H.-J. ; Hirata, A. ; Wakatsuki, A. ; Muramoto, Y. ; Shigekawa, N. ; Kumashiro, T. ; Asa, D. ; Nagatsuma, T. ; Kukutsu, N. ; Kado, Y.
Author_Institution :
NTT Microsyst. Integration Labs., Atsugi, Japan
Abstract :
Spectroscopic images were obtained using a system combining a tunable continuous-wave terahertz laser with an InP-based Schottky barrier diode detector integrating a broadband log-periodic antenna. The distribution of polymorphic forms in pharmaceutical tablets was observed in obtained at images over 1 THz.
Keywords :
III-V semiconductors; Schottky barriers; indium compounds; millimetre wave lasers; pharmaceuticals; polymorphism; terahertz spectroscopy; terahertz wave imaging; InP-based Schottky barrier diode detector; broadband log-periodic antenna; continuous-wave terahertz spectroscopic imaging; pharmaceutical applications; pharmaceutical tablets; polymorphic forms; tunable continuous-wave terahertz laser; Absorption; Detectors; Frequency measurement; Imaging; Lenses; Materials; Pharmaceuticals;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612674
