Free-Space Characterization of Magneto-Optical Hexaferrites in the Submillimeter-Wave Range
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F17%3A10237339" target="_blank" >RIV/61989100:27640/17:10237339 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27740/17:10237339 RIV/61989100:27760/17:10237339
Result on the web
<a href="http://ieeexplore.ieee.org/document/8014472/" target="_blank" >http://ieeexplore.ieee.org/document/8014472/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TTHZ.2017.2736340" target="_blank" >10.1109/TTHZ.2017.2736340</a>
Alternative languages
Result language
angličtina
Original language name
Free-Space Characterization of Magneto-Optical Hexaferrites in the Submillimeter-Wave Range
Original language description
We present the quasi-optical free-space characterization of magneto-optical hexagonal ferrites-crystalline BaFe12O19 and both ceramic and crystalline SrFe12O19-in the range between 325 and 500 GHz using a vector network analyzer. This method provides us the full complex spectrum of the 2 x 2 S-matrix element of the sample. Transmission through free air and reflection of a perfect mirror have been used as references. We determined the complex optical indices, permittivities, and permeabilities of all samples by fitting a calculated model to the measured data. The perturbing effects of multiple reflections between setup components were filtered out by inverse fast Fourier transform of the measured signal and subsequent time gating in the obtained time-domain signal. The results presented in this paper show that this processing method reliably deals with all perturbing effects in free-space measurement and therefore can be applied for characterization of various types of magneto-optical samples with different sizes and significant surface roughness as well. Furthermore, it provides convincing indications regarding the usefulness of the different types of hexaferrites for nonreciprocal devices (such as isolators) for submillimeter applications.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Terahertz Science and Technology
ISSN
2156-342X
e-ISSN
—
Volume of the periodical
7
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
563-571
UT code for WoS article
000411090900009
EID of the result in the Scopus database
2-s2.0-85028502296