Title :
Terahertz time-domain spectroscopy with continuous coverage of the entire terahertz range
Author :
Karpowicz, Nicholas ; Dai, Jianming ; Zhang, X.-C.
Author_Institution :
Rensselaer Polytech. Inst., Troy, NY
Abstract :
Using gases as the emitter and detector media in a THz system allows for good phase matching over the full terahertz range (0.3 to 10 THz), without interruptions from crystal phonon modes or other instrument artifacts. A heterodyne technique facilitates coherent measurement of the electric field waveform, enabling this technique to be used for time-resolved spectroscopy in which a single measurement can continuously cover the entire terahertz region of the electromagnetic spectrum.
Keywords :
heterodyne detection; phonons; terahertz wave spectra; time resolved spectra; crystal phonon modes; detector media; electric field waveform; emitter media; frequency 0.3 THz to 10 THz; heterodyne technique; phase matching; terahertz time-domain spectroscopy; time-resolved spectroscopy; Detectors; Electric variables measurement; Electromagnetic measurements; Frequency conversion; Gases; Phase detection; Phonons; Spectroscopy; Submillimeter wave measurements; Time domain analysis;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665775
