Measurement of the complex magnetic permeability in the millimeter-wave range

Karen N. Kocharyan; Mohammed N. Afsar; Igor I. Tkachov

doi:10.1117/12.331169

13 November 1998 Measurement of the complex magnetic permeability in the millimeter-wave range

Karen N. Kocharyan, Mohammed N. Afsar, Igor I. Tkachov

Proceedings Volume 3465, Millimeter and Submillimeter Waves IV; (1998) https://doi.org/10.1117/12.331169
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

This article presents general principle and the first application of magneto-optical methods for the direct measurement of the complex magnetic permeability in the mm- wave range. The computer controlled quasi-optical spectrometer, which was used for the magneto-optical measurements in the frequency range 70 - 120 GHz, is described. The proof-of-principle experiments were conducted with a soft microwave Nickel Ferrite and with a hard Sr- Hexaferrite permanent ceramic magnet. The potential of magneto-optical methods for the accurate measurement of complex magnetic permeability in the mm-wave range was demonstrated. It was shown that the transverse magneto-optical effect can provide the reliable measurement of the initial permeability. The results of the mm-wave magneto-optical measurements are presented and discussed.

Citation Download Citation

Karen N. Kocharyan, Mohammed N. Afsar, and Igor I. Tkachov "Measurement of the complex magnetic permeability in the millimeter-wave range", Proc. SPIE 3465, Millimeter and Submillimeter Waves IV, (13 November 1998); https://doi.org/10.1117/12.331169

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KEYWORDS

Magnetism

Microwave radiation

Refractive index

Absorption

Ceramics

Dielectrics

Nickel

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