{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T12:14:32Z","timestamp":1785413672893,"version":"3.56.0"},"reference-count":32,"publisher":"Optica Publishing Group","issue":"3","license":[{"start":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:00:00Z","timestamp":1769385600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:00:00Z","timestamp":1769385600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["EXC-2123 QuantumFrontiers- 390837967"],"award-info":[{"award-number":["EXC-2123 QuantumFrontiers- 390837967"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2026,2,9]]},"abstract":"<jats:p>Absorption imaging is a well-established method for determining both the atom number and spatial distribution of atomic ensembles, traditionally limited to a single focal plane and a fixed depth of field. However, as atom optics experiments grow more complex, atomic clouds can exceed the depth of field or leave the focal plane, as seen in large atomic arrays or bubble Bose-Einstein condensates (BECs). Here, we present an absorption imaging system that allows for tuning the object distance of 88.9\u2009mm by \u00b15 mm and the depth of field from 26\u2009\u00b5m to 203\u2009\u00b5m. We determine performance metrics relevant for atomic experiments, such as the resolution and the optical distortion.<\/jats:p>","DOI":"10.1364\/oe.582238","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T16:00:10Z","timestamp":1768406410000},"page":"3691","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Focus and depth of field tunable detection system for compact quantum sensors"],"prefix":"10.1364","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7808-3705","authenticated-orcid":true,"given":"Kai","family":"Frye-Arndt","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0304hq317","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Institute for Satellite Geodesy and Inertial Sensing"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arne","family":"Wacker","sequence":"additional","affiliation":[{"name":"Institute for Satellite Geodesy and Inertial Sensing"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Brunssen","sequence":"additional","affiliation":[{"name":"Institute for Satellite Geodesy and Inertial Sensing"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Til","family":"Dralle","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0304hq317","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Holger","family":"Ahlers","sequence":"additional","affiliation":[{"name":"Institute for Satellite Geodesy and Inertial Sensing"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Waldemar","family":"Herr","sequence":"additional","affiliation":[{"name":"Institute for Satellite Geodesy and Inertial Sensing"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ernst","family":"Rasel","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0304hq317","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Schubert","sequence":"additional","affiliation":[{"name":"Institute for Satellite Geodesy and Inertial Sensing"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,1,26]]},"reference":[{"key":"oe-34-3-3691-R2","doi-asserted-by":"publisher","first-page":"3143","DOI":"10.1364\/OL.32.003143","type":"journal-article","volume":"32","author":"Reinaudi","year":"2007","journal-title":"Opt. 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Further distribution of this work must maintain attribution to the author(s) and the published article\u2019s title, journal citation, and DOI.","name":"copyright","label":"Copyright"}]}}