The experimental semiconductor physics group at the Universoty of Marbug, in cooperation with the South German Plastics Center SKZ, is developing new polymer-based lenses for terahertz and sub-millimetre-wave applications.
'We anticipate that these polymer-based lenses will provide an improved imaging quality, additional functionality as well as low material and production costs,' says Professor Dr Martin Koch, head of the Marburg research group.
Due to the increasing technological maturity of terahertz and microwave systems during the past two decades, this technology is moving from purely scientific interest towards the area of industrial applications. Terahertz technology will have a plethora of applications including industrial quality control, security checks, radio astronomy and wireless communications.
The goal of the project is the development of terahertz lenses based on new mixtures between polymers and additives, such as titanium dioxide or alumina powder. 'By mixing the polymers with additives their refractive index will be increased. Simultaneously the material mixture should be highly transparent to terahertz waves,' Koch explains.