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A new hybrid‐polymer optically tunable dielectric and its measurement using a variation on the split‐post dielectrc resonator
Author(s) -
Jess Nathan,
Syrett Barry,
McGarry Steve,
Roy Langis
Publication year - 2013
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27545
Subject(s) - dielectric , materials science , resonator , microwave , dissipation factor , dielectric resonator , optoelectronics , polymer , semiconductor , dielectric loss , optics , composite material , telecommunications , physics , computer science
An apparatus based on the split‐post dielectric resonator was designed and verified for the purpose of measuring the microwave properties of optically sensitive materials.The apparatus was then used to confirm that a material consisting of micro sized photoconductive particles added to an insulating polymer would show an increase in the effective dielectric constant while under optical illumination. The semiconductor‐polymer composite showed a change in dielectric constant and dielectric loss tangent from 5.5 to 6.1 and 0.05 to 0.09 respectively. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1304–1305, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27545