Real-time millimeter wave holography with an arrayed detector (article)
dc.contributor.author | Penketh, H | |
dc.contributor.author | Ergoktas, MS | |
dc.contributor.author | Lawrence, C | |
dc.contributor.author | Phillips, D | |
dc.contributor.author | Cunningham, J | |
dc.contributor.author | Hendry, E | |
dc.contributor.author | Mrnka, M | |
dc.date.accessioned | 2024-02-05T10:34:04Z | |
dc.date.issued | 2024-02-02 | |
dc.date.updated | 2024-02-04T22:27:56Z | |
dc.description.abstract | Millimeter and terahertz wave imaging has emerged as a powerful tool for applications such as security screening, biomedical imaging, and material analysis. However, intensity images alone are often insufficient for detecting variations in the dielectric constant of a sample, and extraction of material properties without additional phase information requires extensive prior knowledge of the sample. Digital holography provides a means for intensity-only detectors to reconstruct both amplitude and phase images. Here we utilize a commercially available source and detector array, both operating at room temperature, to perform digital holography in real-time for the first time in the mm-wave band (at 290 GHz). We compare the off-axis and phase-shifting approaches to digital holography and discuss their trade-offs and practical challenges in this regime. Owing to the low pixel count, we find phase-shifting holography to be the most practical and high fidelity approach for such commercial mm-wave cameras even under real-time operational requirements. | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | European Research Council (ERC) | en_GB |
dc.description.sponsorship | Royal Academy of Engineering (RAE) | en_GB |
dc.description.sponsorship | QinetiQ | en_GB |
dc.identifier.citation | Vol. 32 (4), pp. 5783-5792 | en_GB |
dc.identifier.doi | https://doi.org/10.1364/oe.513852 | |
dc.identifier.grantnumber | EP/R004781/1 | en_GB |
dc.identifier.grantnumber | EP/S036466/1 | en_GB |
dc.identifier.grantnumber | EP/V047914/1 | en_GB |
dc.identifier.grantnumber | 804626 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/135239 | |
dc.identifier | ORCID: 0000-0003-3611-6809 (Penketh, Harry) | |
dc.identifier | ORCID: 0000-0002-4848-9840 (Hendry, Euan) | |
dc.language.iso | en | en_GB |
dc.publisher | Optica Publishing Group | en_GB |
dc.relation.url | https://doi.org/10.24378/exe.4986 | en_GB |
dc.rights | © 2024. Open access. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. | en_GB |
dc.title | Real-time millimeter wave holography with an arrayed detector (article) | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2024-02-05T10:34:04Z | |
dc.identifier.issn | 1094-4087 | |
dc.description | This is the final version. Available on open access from Optica Publishing Group via the DOI in this record | en_GB |
dc.description | Data Availability: The research data supporting this publication are openly available in ORE at https://doi.org/10.24378/exe.4986 | en_GB |
dc.identifier.eissn | 1094-4087 | |
dc.identifier.journal | Optics Express | en_GB |
dc.relation.ispartof | Optics Express | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2024-01-17 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2024-02-02 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2024-02-05T10:30:31Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2024-02-05T10:34:07Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as © 2024. Open access. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.