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Single-exposure multi-wavelength diffraction imaging with blazed grating
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DOI：10.1364/OL.440336.png)
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摘要
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Multi-wavelength diffraction imaging is a lensless, high-resolution imaging technology. To avoid multiple exposures and enable high-speed data collection, here an innovative setup for the single-exposure multi-wavelength diffraction imaging based on a blazed grating is proposed. Since the blazed angle varies with the wavelength, the diffraction patterns for the individual wavelengths can be separated from each other and recorded in a single measurement at one time. A method of high-precision position alignment between different wavelength patterns is proposed in our system to achieve good image quality and high resolution. Experiments on a phase-only USAF resolution target and biological samples were carried out to verify the effectiveness of our proposed method. This proposed setup has such advantages as a simpler structure, fast recording, and algorithm robustness. (C) 2022 Optical Society of America
Keyword:
WAVE-FRONT RECONSTRUCTION
PHASE-RETRIEVAL
MICROSCOPY
ALGORITHMS
PTYCHOGRAPHY
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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