Title :
Prism-shaped Fabry-Perot etalon for absorption measurement in the terahertz range
Author :
Beigang, René ; Dobroiu, Adrian ; Otani, Chiko ; Kawase, Kodo
Author_Institution :
Dept. of Phys., Tech. Univ. of Kaiserslautern, Germany
fDate :
27 Sept.-1 Oct. 2004
Abstract :
A solid-state prism-shaped Fabry-Perot interferometer allows absorption measurements using a backward wave oscillator (BWO) continuous-wave source in the terahertz range. When a liquid sample is placed on the prism surface it affects the total internal reflection, thus it can be considered as being optically inside the cavity. The wavelength is scanned and the spectra obtained are Fourier analyzed for the absorption determination.
Keywords :
Fabry-Perot interferometers; Fabry-Perot resonators; absorption coefficients; backward wave oscillators; elemental semiconductors; optical prisms; optical variables measurement; silicon; submillimetre wave measurement; submillimetre wave oscillators; BWO; absorption coefficient measurements; backward wave oscillator; continuous wave source; prism shaped Fabry Perot interferometer; prism shaped Fabry-Perot etalon; silicon prism; solid state Fabry-Perot resonator; terahertz range measurement; total internal reflection; wavelength scanning; Absorption; Biomedical optical imaging; Fabry-Perot; Mirrors; Optical reflection; Optical resonators; Optical surface waves; Silicon; Submillimeter wave measurements; 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.2004.1422206
