Title :
THz detection of small molecule vapors over long paths in the atmospheric transmission windows
Author :
Melinger, Joseph S. ; Yang, Yihong ; Mandeghar, Mahboubeh ; Shutler, Alisha ; Grischkowsky, D.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
We describe the initial phase of a long path terahertz time-domain spectroscopy apparatus to detect THz rotational spectra of small vapor phase molecules within the atmospheric transparency windows. We discuss the measurements first for a relatively short path THz propagation path of 6.2 meters, and then for a much longer path of 170 meters.
Keywords :
atmospheric techniques; chemical variables measurement; remote sensing; spectrochemical analysis; submillimetre wave spectroscopy; terahertz spectroscopy; atmospheric transmission windows; distance 170 m; distance 6.2 m; small molecule vapor; terahertz detection; terahertz propagation path; terahertz rotational spectra; terahertz time-domain spectroscopy; Absorption; Atmospheric measurements; Electron tubes; Humidity; Laboratories; Mirrors; Receivers;
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.2011.6104789
