Authors: Maowen Song Honglin Yu Jun Luo Zuojun Zhang
Publish Date: 2016/08/19
Volume: 12, Issue: 3, Pages: 649-654
Abstract
Circularly polarized CP thermal emission possesses huge application value in the fields of infrared detecting and polarimetric thermal imaging however the naturally occurring infrared source is incoherent and unpolarized In this paper we designed a broadband CP source adaptive for high temperature in consideration of the collision frequency of the electrons increasing with temperature Compared with the structure proposed before “I”shaped resonators based on refractory plasmonic material generate the linearly polarized LP emission and the dielectric quarterwave plate enhances the degree of emitted CP by suppressing the parasitic radiation More than 80 righthanded circularly polarized RCP emissivity in wavelengths ranging from 328 to 481 μm within 706 to 884 K is theoretically achieved
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