23 February 2018 Single-pixel diffraction-phase microscopic imaging combined with photon counting
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Proceedings Volume 10503, Quantitative Phase Imaging IV; 105032J (2018) https://doi.org/10.1117/12.2288667
Event: SPIE BiOS, 2018, San Francisco, California, United States
Abstract
We propose a new diffraction phase microscope (DPM), in which a photon counting (PC)-based single-pixel imaging (SPI) technique is introduced for obtaining two-dimensional quantitative phase images (QPIs) of transparent objects. The introduction of the SPI technique is promising for alleviating the sensitivity problem in DPM. This is because a highsensitive single-channel photodetector such as a photomultiplier tube can be used and the spatial multiplex advantage in the signal-to-noise ratio (SNR) can be expected. Furthermore, the employment of the PC technique solves the dynamic range problem inherent to the SPI. As a proof-of-principle experiment, we measured the QPI of a 125-nm thickness ITO layer coated on a silica-glass substrate, demonstrating the superiority of the PC-based SPI-DPM over SPI-DPM in SNR.
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Kyuki Shibuya, Hiroyuki Araki, Shinya Adachi, Tetsuo Iwata, "Single-pixel diffraction-phase microscopic imaging combined with photon counting", Proc. SPIE 10503, Quantitative Phase Imaging IV, 105032J (23 February 2018); doi: 10.1117/12.2288667; https://doi.org/10.1117/12.2288667
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