Results 41 to 50 of about 9,244,583 (282)
Ultrasensitive phase metrology and quantitative phase imaging via holographic dark-port interferometry [PDF]
EPJ Web of ConferencesWe demonstrate an ultrasensitive interferometric technique that turns the normally unfavorable dark fringe into a highly sensitive phase magnifier. Using holographic readout in a slightly unbalanced Mach-Zehnder interferometer, we reconstruct the complex
Calderón J. +5 more
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High-resolution impedance mapping using electrically activated quantitative phase imaging
Light: Science & Applications, 2021 Microscopy: phased-in approach puts nanoscale electrical impedance on the map A microscope capable of real-time, label-free analysis of nanoscale structures and their associated electrical properties could find applications in both biology and materials ...
Cristina Polonschii +8 more
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Quantitative phase imaging with a compact meta-microscope
npj Nanophotonics, 2023 Abstract Quantitative phase imaging (QPI) based on the transport-of-intensity equation (TIE) is a powerful technique in label-free microscopy. The image stack required for a successful TIE-QPI is traditionally obtained by translating the object or image plane, and the optical elements used in the conventional TIE-QPI systems are ...
Junyi Wang +12 more
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White-light quantitative phase imaging unit
Optics Express, 2016 We introduce the white light quantitative phase imaging unit (WQPIU) as a practical realization of quantitative phase imaging (QPI) on standard microscope platforms. The WQPIU is a compact stand-alone unit which measures sample induced phase delay under white-light illumination.
Baek, YoonSeok +4 more
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Preprocessing methods for quantitative phase image stitching
Biomedical Optics Express, 2021 Quantitative phase imaging of cell cultures and histopathological slides often requires measurements in large fields of view which is realized through the stitching of multiple high resolution phase maps. Due to the characteristic properties of phase images, careful preprocessing is crucial for maintaining the metrological value of the stitched phase ...
Piotr Stȩpień +2 more
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, 2015 Common-path diffraction optical tomography (cDOT) is a non-invasive and label-free optical holographic technique for measuring both the three-dimensional refractive index (RI) tomograms and two-dimensional dynamic phase images of a sample.
Youngchan Kim +15 more
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Results in Physics, 2021 We propose a simple common-path off-axis interferometric system to perform high-quality quantitative phase imaging based on a rotatable birefringent prism that is placed at the output port of a conventional transmission or reflection microscope.
Hsiao-Ning Weng, Chu-Yu Huang
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Quantitative Phase Imaging and Artificial Intelligence: A Review [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2019 Recent advances in quantitative phase imaging (QPI) and artificial intelligence (AI) have opened up the possibility of an exciting frontier. The fast and label-free nature of QPI enables the rapid generation of large-scale and uniform-quality imaging data in two, three, and four dimensions.
YoungJu Jo +6 more
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, 2016 Quantitative phase microscopy (QPM) has recently emerged as a powerful label-free technique in the field of living cell imaging allowing to non-invasively measure with a nanometric axial sensitivity cell structure and dynamics.
Rappaz, Benjamin +11 more
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Quantitative phase contrast imaging with a nonlocal angle-selective metasurface
Nature Communications, 2022 The authors present an approach to phase imaging by using the non-local optical response of a guided-moderesonator metasurface. They demonstrate that this metasurface can be added to a conventional microscope to enable quantitative phase contrast imaging.
Anqi Ji +10 more
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