Title :
Molecular spectroscopy with a multimode THz quantum-cascade laser
Author :
Eichholz, R. ; Richter, H. ; Pavlov, S.G. ; Semenov, A.D. ; Wienold, M. ; Schrottke, L. ; Giehler, M. ; Hey, R. ; Grahn, H.T. ; Hübers, H. -W
Author_Institution :
Inst. of Planetary Res., German Aerosp. Center (DLR), Berlin, Germany
Abstract :
A terahertz absorption spectrometer for high-resolution molecular spectroscopy is realized. The spectrometer is based on a multimode quantum-cascade laser. The design and performance of the spectrometer are presented. Three aspects are discussed: sensitivity, frequency calibration, and frequency multiplexing.
Keywords :
quantum cascade lasers; terahertz spectroscopy; frequency multiplexing; high-resolution molecular spectroscopy; multimode THz quantum-cascade laser; terahertz absorption spectrometer; Absorption; Arrays; Detectors; Frequency division multiplexing; Laser modes; Quantum cascade lasers; Spectroscopy;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104791
