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Opt."],"published-print":{"date-parts":[[2025,11,1]]},"abstract":"<jats:p>Frequency-modulated continuous-wave (FMCW) range-selective digital holography (RSDH) achieved by frequency shifting the reference local oscillator beam has previously been used to selectively image two objects within the depth of field of the imaging system at short ranges. In this paper, we present a three-dimensional (3D) imaging demonstration using FMCW RSDH. This technique was used to image and reconstruct a 3D object, improving on past methods by reducing the need for fast frame rate sensor arrays and reducing the total sensor integration time. This allows the data for a 3D reconstruction to be recorded an order of magnitude faster than the traditional time-domain Fourier transform FMCW digital holography method and only requires holographic stability for less than 1\u00a0ms at a time. A 3D object consisting of square-shaped columns of multiple heights was imaged at a range of 8.4\u00a0m. A 16.0\u00a0GHz chirp bandwidth resulted in an imaging range resolution of 1\u00a0cm, much less than the optical system\u2019s depth of field of 33\u00a0cm. The relative heights of the columns and total depth of 11\u00a0cm were calculated with a 0.01\u00a0cm root-mean-square error.<\/jats:p>","DOI":"10.1364\/ao.573746","type":"journal-article","created":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T13:00:13Z","timestamp":1759323613000},"page":"9169","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Range-selective digital holography for three-dimensional imaging of a complex object"],"prefix":"10.1364","volume":"64","author":[{"given":"Corey A.","family":"Pearson","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02w0trx84","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}