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16 October 2019 The optimization criteria for resolution improvement in a lens-free on-chip digital holographic microscope
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Proceedings Volume 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019); 112050C (2019) https://doi.org/10.1117/12.2548538
Event: Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 2019, Phuket, Thailand
Abstract
The typical lens-free on-chip digital holographic microscopy (LFOCDHM) as a modern imaging technique produce compromised imaging resolution that far below the ideal coherent diffraction limit. At least five major factors may contribute to this limitation, namely, the sample-to-sensor distance, spatial and temporal coherence of the illumination, finite pixel size of the sensor, and finite extent of the image sub-field-of-view used for the reconstruction. In this paper, we derive five transfer function models that account for all these physical effects on the imaging resolution of LFOCDHM. The theoretical resolution limit of a given LFOCDHM system can also be predicted. Besides this, we provide a useful guide to the selection of different system parameters for the optimization of the imaging resolution when designing a new LFOCDHM system.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jialin Zhang, Qian Chen, Jiasong Sun, and Chao Zuo "The optimization criteria for resolution improvement in a lens-free on-chip digital holographic microscope", Proc. SPIE 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 112050C (16 October 2019); https://doi.org/10.1117/12.2548538
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