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3D Printed Terahertz Focusing Grating Couplers

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Abstract

We have designed, constructed and characterized a grating that focuses electromagnetic radiation at specific frequencies out of a dielectric waveguide. A simple theoretical model predicts the focusing behaviour of these chirped gratings, along with numerical results that support our assumptions and improved the grating geometry. The leaky waveguide was 3D printed and characterized at 120 GHz demonstrating its potential for manipulating terahertz waves.

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Acknowledgments

F. Beltrán-Mejía acknowledges support from Finep/Funttel (01.14.0231.00) under the Radiocommunication Reference Center – CRR, project of the National Institute of Telecommunications – Inatel, Brazil.

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Authors and Affiliations

  1. Department of Physics and Material Science Center, Philipps University of Marburg, Renthof 5, 35032, Marburg, Germany

    David Jahn, Marcel Weidenbach, Jannik Lehr, Leonard Becker, Stefan F. Busch, Jan C. Balzer & Martin Koch

  2. National Institute of Telecommunications, Av. João Camargo 510, 37540-000, Santa Rita do Sapucaí, MG, Brazil

    Felipe Beltrán-Mejía

Authors
  1. David Jahn
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  2. Marcel Weidenbach
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  3. Jannik Lehr
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  4. Leonard Becker
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  5. Felipe Beltrán-Mejía
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  6. Stefan F. Busch
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  7. Jan C. Balzer
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  8. Martin Koch
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Correspondence to David Jahn.

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Jahn, D., Weidenbach, M., Lehr, J. et al. 3D Printed Terahertz Focusing Grating Couplers. J Infrared Milli Terahz Waves 38, 708–716 (2017). https://doi.org/10.1007/s10762-017-0370-5

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  • DOI: https://doi.org/10.1007/s10762-017-0370-5

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