Interference probe ptychography for computational amplitude and phase microscopy
| Autor: | Stefan Witte, Dirk E. Boonzajer Flaes |
|---|---|
| Přispěvatelé: | Amsterdam Neuroscience - Brain Imaging, Atoms, Molecules, Lasers, LaserLaB - Physics of Light |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Orientation (computer vision) business.industry Image quality Phase (waves) 02 engineering and technology 021001 nanoscience & nanotechnology Interference (wave propagation) 01 natural sciences Atomic and Molecular Physics and Optics Ptychography 010309 optics Interferometry Optics 0103 physical sciences 0210 nano-technology business Image resolution Fresnel diffraction |
| Zdroj: | Optics Express, 26(24), 31372-31390. The Optical Society Boonzajer Flaes, D E & Witte, S 2018, ' Interference probe ptychography for computational amplitude and phase microscopy ', Optics Express, vol. 26, no. 24, pp. 31372-31390 . https://doi.org/10.1364/OE.26.031372 Optics Express |
| ISSN: | 1094-4087 |
| Popis: | We have developed an approach to Fresnel domain ptychography in which the illumination consists of an interference pattern. This pattern is conveniently created by overlapping two coherent beams at an angle. Only the phase and orientation of the interferometric fringe pattern needs to be scanned to reconstruct a high-fidelity object image, which alleviates the requirements for accurate sample positioning and system stability. As such, the resulting imaging systems can be constructed in an extremely simple and robust way. Object images are reconstructed from recorded Fresnel diffraction data using a modified ptychographical iterative engine. We demonstrate the capabilities of this imaging system by recording images of various biological samples, demonstrating quantitative phase contrast as well as a spatial resolution better than 2.2 µm. |
| Databáze: | OpenAIRE |
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