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3D Printed Terahertz Diffraction Gratings And Lenses

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Abstract

3D printing opens up an inexpensive, rapid, and versatile path to the fabrication of optical elements suited to the terahertz regime. The transmission of the plastics used in 3D printers, while generally decreasing with frequency, is usable over the range 0.1–2 THz. We have designed, fabricated, and tested regular and blazed gratings and aspherical lenses for operation at terahertz frequencies. We find that the measured performance matches our theoretical predictions.

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Acknowledgements

This work was supported by the Australian Research Council and by the University of Wollongong. We thank EMCORE Corporation (J. Demers) for the provision of the excellent photomixer used in the experiments reported here. We are grateful to E. Li and J. Graham for assistance with the optical alignment of the apparatus.

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Authors and Affiliations

  1. Institute for Superconducting and Electronic Materials and School of Physics, University of Wollongong, Wollongong, NSW 2522, Australia

    A. D. Squires, E. Constable & R. A. Lewis

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  1. A. D. Squires
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  2. E. Constable
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  3. R. A. Lewis
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Correspondence to R. A. Lewis.

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Squires, A.D., Constable, E. & Lewis, R.A. 3D Printed Terahertz Diffraction Gratings And Lenses. J Infrared Milli Terahz Waves 36, 72–80 (2015). https://doi.org/10.1007/s10762-014-0122-8

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  • DOI: https://doi.org/10.1007/s10762-014-0122-8

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