{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,10]],"date-time":"2026-05-10T16:17:31Z","timestamp":1778429851409,"version":"3.51.4"},"reference-count":53,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2024,1,23]],"date-time":"2024-01-23T00:00:00Z","timestamp":1705968000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"CSIR, India"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Digital holography (DH) is an important method for three-dimensional (3D) imaging since it allows for the recording and reconstruction of an object\u2019s amplitude and phase information. However, the field of view (FOV) of a DH system is typically restricted by the finite size of the pixel pitch of the digital image sensor. We proposed a new configuration of the DH system based on Fresnel\u2019s bi-mirror to achieve doubling the camera FOV of the existing off-axis DH system which leveraged single-shot acquisition and a common-path optical framework. The dual FOV was obtained by spatial frequency multiplexing corresponding to two different information-carrying beams from an object. Experimental evidence of the proposed dual FOV-DH system\u2019s viability was provided by imaging two different areas of the test object and an application to surface profilometry by measuring the step height of the resolution chart which showed excellent agreement with an optical profiler. Due to the simple configuration, the proposed system could find a wide range of applications, including in microscopy and optical metrology.<\/jats:p>","DOI":"10.3390\/s24030731","type":"journal-article","created":{"date-parts":[[2024,1,24]],"date-time":"2024-01-24T04:54:01Z","timestamp":1706072041000},"page":"731","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel\u2019s Bi-Mirror"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0710-8933","authenticated-orcid":false,"given":"Lavlesh","family":"Pensia","sequence":"first","affiliation":[{"name":"CSIR\u2014Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, India"},{"name":"Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2870-0677","authenticated-orcid":false,"given":"Manoj","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Systems Science, Graduate School of System Informatics, Kobe University, Kobe 657-8501, Japan"},{"name":"Center of Optical Scattering Image Science, Kobe University, Kobe 657-8501, Japan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2382-1325","authenticated-orcid":false,"given":"Raj","family":"Kumar","sequence":"additional","affiliation":[{"name":"CSIR\u2014Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, India"},{"name":"Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India"}]}],"member":"1968","published-online":{"date-parts":[[2024,1,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"610","DOI":"10.1364\/OL.25.000610","article-title":"Three-Dimensional Object Recognition by Use of Digital Holography","volume":"25","author":"Javidi","year":"2000","journal-title":"Opt. 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