3D surface profilometry using neutral helium atoms
Fuente:
arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866929343023808512 |
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| author | Radic, Aleksandar Lambrick, Sam M. von Jeinsen, Nick A. Jardine, Andrew P. Ward, David J. |
| author_facet | Radic, Aleksandar Lambrick, Sam M. von Jeinsen, Nick A. Jardine, Andrew P. Ward, David J. |
| contents | Three-dimensional mapping of surface structures is important in a wide range of biological, technological, healthcare and research applications, including taxonomy, microfluidics and fabrication. Neutral helium atom beams have been established as a sensitive probe of topography and have already enabled structural information to be obtained from delicate samples, where conventional probes would cause damage. Here, we demonstrate empirical reconstruction of a complete surface profile using measurements from a scanning helium microscope (SHeM), using the heliometric stereo method and a single detector instrument geometry. Results for the surface profile of tetrahedral aluminum potassium sulphate crystals demonstrate the areas of surfaces and facet orientations can be recovered to within 5% of the expected values. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_11114 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | 3D surface profilometry using neutral helium atoms Radic, Aleksandar Lambrick, Sam M. von Jeinsen, Nick A. Jardine, Andrew P. Ward, David J. Atomic Physics Applied Physics Instrumentation and Detectors Three-dimensional mapping of surface structures is important in a wide range of biological, technological, healthcare and research applications, including taxonomy, microfluidics and fabrication. Neutral helium atom beams have been established as a sensitive probe of topography and have already enabled structural information to be obtained from delicate samples, where conventional probes would cause damage. Here, we demonstrate empirical reconstruction of a complete surface profile using measurements from a scanning helium microscope (SHeM), using the heliometric stereo method and a single detector instrument geometry. Results for the surface profile of tetrahedral aluminum potassium sulphate crystals demonstrate the areas of surfaces and facet orientations can be recovered to within 5% of the expected values. |
| title | 3D surface profilometry using neutral helium atoms |
| topic | Atomic Physics Applied Physics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2312.11114 |