Title :
Cost-effective THz spectroscopy with continuous-wave laser sources
Author :
Hofmann, M.R. ; Scheller, M. ; Brenner, C. ; Baaske, Kai ; Koch, M.
Author_Institution :
LS fur Photonik und Terahertz-Technol., Ruhr-Univ. Bochum, Bochum, Germany
Abstract :
We use a laser diode in an external cavity to operate a photomixer based terahertz spectrometer. The emission spectrum of the laser can be easily switched between two-color operation and multi-line operation by means of a specially designed end mirror. This changes the operation mode of the terahertz spectrometer from continuous wave operation to a scheme called terahertz quasi time-domain spectroscopy.
Keywords :
Diode lasers; Frequency; Laser modes; Optical imaging; Optical mixing; Optical pulse generation; Photoconductivity; Plastics; Spectroscopy; Ultrafast optics;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
