AI Article Synopsis
- A new optical alignment and reconstruction algorithm are introduced to minimize errors in Ptychographical Iterative Engine (PIE) imaging caused by hysteresis or backlash in translation stages.
- The probe positions are derived from recorded diffraction patterns instead of relying on stage meter readings, which enhances accuracy.
- This approach significantly improves reconstruction quality and reduces reliance on device precision, making PIE more applicable for imaging weak scattering specimens.
Article Abstract
A special optical alignment is adopted and corresponding reconstruction algorithm is developed to reduce the reconstruction error induced by the hysteresis or backlash error of the translation stage in Ptychographical Iterative Engine (PIE) imaging with weak scattering specimen. In this suggested method, the positions of the scanning probe are determined directly from the recorded diffraction patterns rather than from the readout of the stage meter. This method not only remarkably improves the reconstruction quality, but also completely lowers the dependency of PIE on the device accuracy and accordingly enhances its feasibility for many applications with weak scattering specimen.
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| http://dx.doi.org/10.1364/OE.21.006162 | DOI Listing |
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