Dielectric Analysis of 3D Printed Materials for Focusing Elements Operating in Mm & THz Wave Frequency Bands Vrije Universiteit Brussel
In near-field microscopy at millimetre and THz wave frequencies, it is essential to design focusing elements featuring sub-wavelength dimensions. Teflon has been a very popular material for designing dielectric waveguides, however, it is difficult to mill or cut focusing elements with (sub)-millimetre dimensions due to its softness. Hence, a new method, based on additive manufacturing technology, e.g. the Dimension Elite 3D printer, is ...