G. Savini 1*, J.Zhang 2, P.Ade 2, P.D.Mauskopf 2
1 Optical Science Laboratory, University College London, Gower Street, London, WC1E 6BT, U.K.
2 School of Physics and Astronomy, Cardiff University, Queens Buildings, the Parade, Cardiff, CF24 3AA, U.K
*1 Email: gs@star.ucl.ac.uk
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Abstract: In this work we present the latest improvements on the fabrication of a non-crystal achromatic half-wave plate working in the sub-THz frequency range [1]. This is achieved by hot-pressing polypropylene layers with photo-lithographed copper structures. We will discuss the performance of the first prototypes and a few techniques for the improvement of future designs. General considerations at the root of achromatic designs will also be touched upon which are valid for both optical and waveguide phase modulators.
Keywords: Polarization modulator technology, Non-crystal achromatic half-wave plate, Sub-THz.
Published: 2011-9-30
Cite this article:
G. Savini, J.Zhang, P.Ade, P.D.Mauskopf. Advances on Polarization Modulator Technology and Methodology for Future Improvements[J]. International Journal of Terahertz Science and Technology, 2011, Vol.4, No.3: 109-115. DOI:10.11906/TST.109-115.2011.09.16
URL: http://www.tstnetwork.org/10.11906/TST.109-115.2011.09.16
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