تقرير
3D surface profilometry using neutral helium atoms
| العنوان: | 3D surface profilometry using neutral helium atoms |
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| المؤلفون: | Radic, Aleksandar, Lambrick, Sam M., von Jeinsen, Nick A., Jardine, Andrew P., Ward, David J. |
| سنة النشر: | 2023 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Atomic Physics, Physics - Applied Physics, Physics - Instrumentation and Detectors |
| الوصف: | 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. Comment: 7 pages (including bibliography), 5 figures (including Appendix). Published at Applied Physics Letters on 14th May 2024 (doi.org/10.1063/5.0206374) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/5.0206374 |
| URL الوصول: | http://arxiv.org/abs/2312.11114 |
| رقم الأكسشن: | edsarx.2312.11114 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/5.0206374 |
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