<div class="csl-bib-body">
<div class="csl-entry">Constable, E., Gospodaric, J., & Pimenov, A. (2024). Encoding terahertz holographic bits with a computer-generated 3D-printed phase plate. <i>Scientific Reports</i>, <i>14</i>(1), Article 5549. https://doi.org/10.1038/s41598-024-56113-2</div>
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dc.identifier.issn
2045-2322
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/196905
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dc.description.abstract
A sub-terahertz holographic image of a two-dimensional 576-bit data code is produced using a diffractive phase-plate element. The phase plate was designed using a modified Gerchberg-Saxton iterative algorithm to encode a focused image of the data code into a phase modulation profile. The complex phase plate structure is fabricated from polylactic acid using fused deposition modeling, a common three-dimensional-printing technique. The design achieves a significantly simplified optical setup, consisting of a 0.14 THz diverging source, the holographic phase plate and a scanning detector, without the need for additional optical elements. The information stored in the data code is an example of a cryptographic private key. Specifically, the private key for a Bitcoin wallet address. Successful retrieval of the encoded information demonstrates a potential use case for terahertz holographic memory, using a storage medium that can be fabricated with consumer-level three-dimensional-printing techniques.
en
dc.language.iso
en
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dc.publisher
NATURE PORTFOLIO
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dc.relation.ispartof
Scientific Reports
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dc.subject
Terahertz
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dc.subject
holographic image
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dc.title
Encoding terahertz holographic bits with a computer-generated 3D-printed phase plate