{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T09:08:23Z","timestamp":1760346503088,"version":"build-2065373602"},"reference-count":21,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2016,2,6]],"date-time":"2016-02-06T00:00:00Z","timestamp":1454716800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001711","name":"Schweizerischer Nationalfonds zur F\u00f6rderung der Wissenschaftlichen Forschung","doi-asserted-by":"publisher","award":["200021_160078\/1","200021_146769"],"award-info":[{"award-number":["200021_160078\/1","200021_146769"]}],"id":[{"id":"10.13039\/501100001711","id-type":"DOI","asserted-by":"publisher"}]},{"name":"PSI-FELLOW\/COFUND","award":["290605"],"award-info":[{"award-number":["290605"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In terahertz (THz) materials science, imaging by scanning prevails when low power THz sources are used. However, the application of array detectors operating with high power THz sources is increasingly reported. We compare the imaging properties of four different array detectors that are able to record THz radiation directly. Two micro-bolometer arrays are designed for infrared imaging in the 8\u201314 \u03bcm wavelength range, but are based on different absorber materials (i) vanadium oxide; (ii) amorphous silicon; (iii) a micro-bolometer array optimized for recording THz radiation based on silicon nitride; and (iv) a pyroelectric array detector for THz beam profile measurements. THz wavelengths of 96.5 \u03bcm, 118.8 \u03bcm, and 393.6 \u03bcm from a powerful far infrared laser were used to assess the technical performance in terms of signal to noise ratio, detector response and detectivity. The usefulness of the detectors for beam profiling and digital holography is assessed. Finally, the potential and limitation for real-time digital holography are discussed.<\/jats:p>","DOI":"10.3390\/s16020221","type":"journal-article","created":{"date-parts":[[2016,2,9]],"date-time":"2016-02-09T13:45:23Z","timestamp":1455025523000},"page":"221","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1547-9889","authenticated-orcid":false,"given":"Erwin","family":"Hack","sequence":"first","affiliation":[{"name":"Reliability Science and Technology Laboratory, Empa, \u00dcberlandstrasse 129, CH-8600 D\u00fcbendorf, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lorenzo","family":"Valzania","sequence":"additional","affiliation":[{"name":"Reliability Science and Technology Laboratory, Empa, \u00dcberlandstrasse 129, CH-8600 D\u00fcbendorf, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregory","family":"G\u00e4umann","sequence":"additional","affiliation":[{"name":"Institute of Applied Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3073-2304","authenticated-orcid":false,"given":"Mostafa","family":"Shalaby","sequence":"additional","affiliation":[{"name":"SwissFEL Laser Group, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8751-0585","authenticated-orcid":false,"given":"Christoph","family":"Hauri","sequence":"additional","affiliation":[{"name":"SwissFEL Laser Group, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Zolliker","sequence":"additional","affiliation":[{"name":"Reliability Science and Technology Laboratory, Empa, \u00dcberlandstrasse 129, CH-8600 D\u00fcbendorf, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2016,2,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kruse, P.W. 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