Book
Computational Depth-resolved Imaging and Metrology
| العنوان: | Computational Depth-resolved Imaging and Metrology |
|---|---|
| المؤلفون: | Du, Mengqi |
| المصدر: | Du , M 2021 , ' Computational Depth-resolved Imaging and Metrology ' , PhD , Vrije Universiteit Amsterdam , Amsterdam . |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Computational imaging, Lensless imaging, Ptychography, Optical coherence tomography, Coherent diffractive imaging, Depth-resolved, Metrology, Surface roughness, 3D imaging |
| الوصف: | In this thesis, the main research challenge boils down to extracting 3D spatial information of an object from 2D measurements using light. Our goal is to achieve depth-resolved tomographic imaging of transparent or semi-transparent 3D objects, and to perform topography characterization of rough surfaces. The essential tool we used is computational imaging, where depending on the experimental scheme, often indirect measurements are taken, and tailored algorithms are employed to perform image reconstructions. The computational imaging approach enables us to relax the hardware requirement of an imaging system, which is essential when using light in the EUV and x-ray regimes, where high-quality optics are not readily available. In this thesis, visible and infrared light sources are used, where computational imaging also offers several advantages. First of all, it often leads to a simple, flexible imaging system with low cost. In the case of a lensless configuration, where no lenses are involved in the final image-forming stage between the object and the detector, aberration-free image reconstructions can be obtained. More importantly, computational imaging provides quantitative reconstructions of scalar electric fields, enabling phase imaging, numerical refocus, as well as 3D imaging. |
| نوع الوثيقة: | book |
| وصف الملف: | application/pdf |
| اللغة: | English |
| الاتاحة: | https://research.vu.nl/en/publications/d7bee925-2868-4683-945d-533d0a493ace https://hdl.handle.net/1871.1/d7bee925-2868-4683-945d-533d0a493ace https://research.vu.nl/ws/files/129674710/M%20%20Du%20-%20thesis.pdf https://research.vu.nl/ws/files/129674712/M%20%20Du%20-%20cover.pdf https://research.vu.nl/ws/files/129674714/M%20%20Du%20-%20title_page.pdf |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.D125ED5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |