A NEW HYBRID-POLYMER OPTICALLY TUNABLE DIELECTRIC AND ITS MEASUREMENT USING A VARIATION ON THE SPLIT-POST DIELECTRIC RESONATOR

摘要

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.