A new hybrid-polymer optically tunable dielectric and its measurement using a variation on the split-post dielectrc resonator

作者：Jess Nathan^*; Syrett Barry; McGarry Steve; Roy Langis

来源：Microwave and Optical Technology Letters, 2013, 55(6): 1304-1305.

DOI：10.1002/mop.27545

• optically tunable dielectric
• resonant complex permittivity measurement technique
• photoconductive

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.

• 出版日期2013-6