“TeraFoils: Design and Rapid Fabrication Techniques for Binary Holographic Structures in the Terahertz Region” by Yamamoto, Namikawa and Ochiai
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Entry Number: 25
Title:
- TeraFoils: Design and Rapid Fabrication Techniques for Binary Holographic Structures in the Terahertz Region
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Abstract:
In this paper, we introduce TeraFoils, a method for designing and fabricating material-based structures using binary holograms in the terahertz region. We outline the design, fabrication, imaging, and data processing steps for embedding information inside physical objects and exploring a method to create holographic structures with silver-foiled paper. This paper is a sheet on which silver foil is pasted where the ink is printed, using a home-use laser printer and an electric iron. Wave propagation calculations were performed to design a binary-amplitude hologram. Along with the designed pattern, we fabricated silver-foiled binary holograms in the subterahertz range (0.1 THz) and confirmed their functions using a two-dimensional THz sensor.
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Acknowledgements:
The authors would like to thank laboratory students (Keita Yamazaki, Tatsuya Minagawa, Masaaki Sadasue, Daichi Tagami, and Ippei Suzuki) for their valuable comments and their help with the experiment. This work was supported by JSPS KAKENHI Grant Numbers JP17H04688.
