Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror
Digital holography (DH) is an important method for three-dimensional (3D) imaging since it allows for the recording and reconstruction of an object’s 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...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/24/3/731 |
| _version_ | 1797318258176557056 |
|---|---|
| author | Lavlesh Pensia Manoj Kumar Raj Kumar |
| author_facet | Lavlesh Pensia Manoj Kumar Raj Kumar |
| author_sort | Lavlesh Pensia |
| collection | DOAJ |
| description | Digital holography (DH) is an important method for three-dimensional (3D) imaging since it allows for the recording and reconstruction of an object’s 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’s 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’s 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. |
| first_indexed | 2024-03-08T03:49:50Z |
| format | Article |
| id | doaj.art-6d82a7d9379c407ab9631cde7a14a6d8 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-08T03:49:50Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6d82a7d9379c407ab9631cde7a14a6d82024-02-09T15:21:40ZengMDPI AGSensors1424-82202024-01-0124373110.3390/s24030731Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-MirrorLavlesh Pensia0Manoj Kumar1Raj Kumar2CSIR—Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaDepartment of Systems Science, Graduate School of System Informatics, Kobe University, Kobe 657-8501, JapanCSIR—Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, IndiaDigital holography (DH) is an important method for three-dimensional (3D) imaging since it allows for the recording and reconstruction of an object’s 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’s 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’s 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.https://www.mdpi.com/1424-8220/24/3/731digital holographymultiplexed holographyFresnel bi-mirrorFresnel diffraction method |
| spellingShingle | Lavlesh Pensia Manoj Kumar Raj Kumar Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror Sensors digital holography multiplexed holography Fresnel bi-mirror Fresnel diffraction method |
| title | Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror |
| title_full | Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror |
| title_fullStr | Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror |
| title_full_unstemmed | Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror |
| title_short | Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel’s Bi-Mirror |
| title_sort | dual field of view off axis spatially multiplexed digital holography using fresnel s bi mirror |
| topic | digital holography multiplexed holography Fresnel bi-mirror Fresnel diffraction method |
| url | https://www.mdpi.com/1424-8220/24/3/731 |
| work_keys_str_mv | AT lavleshpensia dualfieldofviewoffaxisspatiallymultiplexeddigitalholographyusingfresnelsbimirror AT manojkumar dualfieldofviewoffaxisspatiallymultiplexeddigitalholographyusingfresnelsbimirror AT rajkumar dualfieldofviewoffaxisspatiallymultiplexeddigitalholographyusingfresnelsbimirror |