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Proceedings Paper

Characterization of microwave ceramics atsubmillimeter waves
Author(s): G. A. Komandin
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Paper Abstract

In this report we discuss the technique for dielectric characterization of microwave ceramics with the help ofsubmillimeter frequency-tunable monochromatic generators - backward-wave oscillators (BWO). We have devel- oped for frequencies 1011 - 1012 Hz (A - 3 - 0.3 mm) a technique for fast and precise measurement of the dielectriccharacteristics el and Ell of transparent ceramic samples. The techinique is aimed at determination of minimal levelof losses, connected with the fundamental infrared resonances of the crystal lattice [1, 2]. The measuring procedureconsists of recording in optical scheme of the transmissivity spectra of plane-parallel ceramic plates, working asFabry-Perot interferometers due to their high quality factors. The spectra of el and ell are determined on the basisof oscillating transmissivity curves using Fresnel formulas (Figs. 1,2).

Paper Details

Date Published: 30 August 1993
PDF: 1 pages
Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21042A (30 August 1993); doi: 10.1117/12.2298514
Show Author Affiliations
G. A. Komandin, Institute for General Physics (Russian Federation)

Published in SPIE Proceedings Vol. 2104:
18th International Conference on Infrared and Millimeter Waves
James R. Birch; Terence J. Parker, Editor(s)

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