The next dimension: Digital holography for 3D interferometric scattering
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908478698684416 |
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| author | Arroyo, Jaime Ortega Liebel, Matz |
| author_facet | Arroyo, Jaime Ortega Liebel, Matz |
| contents | We provide detailed experimental guidelines for implementing digital holography in the context of high-sensitivity interferometric scattering (iSCAT) based nanosizing applications. Our approach relies on interferometry via the highly versatile off-axis implementation of digital holography, which offers key advantages over more traditional strategies. After a brief theoretical discussion of off-axis holography and its differences and similarities with iSCAT, typical experimental implementations and digital data-processing steps are presented. Key experimental parameters and strategies to achieve optimal performance are also highlighted. Following these experimental aspects, we focus on digital post-processing routines that enable digital refocussing and 3D particle tracking as well as pupil function aberration correction. We then conclude with a few examples highlighting the broad applicability of digital holography for nanosizing and particle characterisation applications as well as an outlook for future applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_02910 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The next dimension: Digital holography for 3D interferometric scattering Arroyo, Jaime Ortega Liebel, Matz Optics We provide detailed experimental guidelines for implementing digital holography in the context of high-sensitivity interferometric scattering (iSCAT) based nanosizing applications. Our approach relies on interferometry via the highly versatile off-axis implementation of digital holography, which offers key advantages over more traditional strategies. After a brief theoretical discussion of off-axis holography and its differences and similarities with iSCAT, typical experimental implementations and digital data-processing steps are presented. Key experimental parameters and strategies to achieve optimal performance are also highlighted. Following these experimental aspects, we focus on digital post-processing routines that enable digital refocussing and 3D particle tracking as well as pupil function aberration correction. We then conclude with a few examples highlighting the broad applicability of digital holography for nanosizing and particle characterisation applications as well as an outlook for future applications. |
| title | The next dimension: Digital holography for 3D interferometric scattering |
| topic | Optics |
| url | https://arxiv.org/abs/2508.02910 |