Periodic structure towards the terahertz region manufactured using high resolution 3D printing

Phipps, A. R. and MacLachlan, A. J. and Zhang, L. and Robertson, C. W. and Konoplev, I. V. and Phelps, A. D. R. and Cross, A. W. (2016) Periodic structure towards the terahertz region manufactured using high resolution 3D printing. In: 2015 8th UK, Europe, China Millimeter Waves and THz Technology Workshop, UCMMT 2015. IEEE, Piscataway, NJ. ISBN 9781467374347

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    Abstract

    Periodic structures used for high power millimetre and sub-millimetre sources that implement relativistic beam - wave interactions have historically involved the implantation of a dielectric layer around the inner wall of the interaction region or a periodic corrugated structure that serves to reduce the velocity of an internal electromagnetic wave. Moving towards the THz regime, the physical dimensions required to manufacture such a cavity become prohibitively difficult. Ongoing attempts to develop manufacturing processes that provide higher resolution have resulted in a number of viable techniques. Additive Manufacturing or 3D printing offers the possibility of producing components on this scale quickly and efficiently. Here 0.1, 0.4 and 1 THz periodic structures are realised using high resolution (16 micron) 3D printing technology.