Title :
Subterahertz BWO spectroscopy: methods and devices
Author :
Spektor, L. ; Anzin, V. ; Goncharov, Yu. ; Gorshunov, B. ; Gusev, G. ; Komandin, G. ; Lebedev, S. ; Volkov, A.
Author_Institution :
Inst. of Gen. Phys., Acad. of Sci., Moscow, Russia
fDate :
27 Sept.-1 Oct. 2004
Abstract :
Modern sub-terahertz (subTHz) spectrometers, based on coherent sources of radiation, the backward-wave oscillators (BWOs), are described which cover the frequencies V=1 cm-1-48 cm-1 (30-1450 GHz) and allow for measurements at temperatures 2-1000 K, also in magnetic fields. They allow for direct determination of spectra of any optical parameter of a material at millimeter-submillimeter wavelengths, the domain where infrared or microwave spectrometers encounter serious methodological difficulties. We report on new technical abilities of the quasioptical BWO-spectrometers and discuss their main components.
Keywords :
backward wave oscillators; submillimetre wave spectroscopy; 2 to 1000 K; 30 to 1450 GHz; backward wave oscillators; infrared spectrometry; microwave spectrometry; millimeter wavelengths; optical parameter; quasioptical BWO spectrometry; submillimeter wavelengths; subterahertz spectrometry; Frequency measurement; Infrared spectra; Magnetic field measurement; Magnetic materials; Microwave theory and techniques; Optical materials; Oscillators; Spectroscopy; Temperature measurement; Wavelength measurement;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422122
