Title :
Frequency modulation for continuous wave terahertz spectroscopy
Author :
Scheller, Maik ; Kinder, Thomas ; Peters, Ole ; Müller-Wirts, Thomas ; Koch, Martin
Author_Institution :
Philipps-Univ.-Marburg, Marburg, Germany
Abstract :
We propose a frequency modulation for continuous wave terahertz spectroscopy to replace conventional delay lines. We show that this technique in combination with a lock-in amplifier allows for a single sampling point detection of the amplitude and phase of the terahertz signal.
Keywords :
amplifiers; frequency modulation; terahertz spectroscopy; terahertz wave detectors; continuous wave terahertz spectroscopy; conventional delay lines; frequency modulation; lock-in amplifier; sampling point detection; terahertz signal amplitude detection; terahertz signal phase detection; Frequency modulation; Laser beams; Optical beams; Optical fiber amplifiers; Optical fiber polarization; Optical fiber sensors; Spectroscopy;
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.2010.5612934
