Searched for: author%3A%22Shao%2C+Y.%22
(1 - 12 of 12)
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Seifert, Jacob (author), Shao, Y. (author), Mosk, Allard P. (author)
Computational imaging is increasingly vital for a broad spectrum of applications, ranging from biological to material sciences. This includes applications where the object is known and sufficiently sparse, allowing it to be described with a reduced number of parameters. When no explicit parameterization is available, a deep generative model...
journal article 2024
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Seifert, Jacob (author), Shao, Y. (author), van Dam, Rens (author), Bouchet, Dorian (author), van Leeuwen, Tristan (author), Mosk, Allard P. (author)
Optical measurements often exhibit mixed Poisson–Gaussian noise statistics, which hampers the image quality, particularly under low signal-to-noise ratio (SNR) conditions. Computational imaging falls short in such situations when solely Poissonian noise statistics are assumed. In response to this challenge, we define a loss function that...
journal article 2023
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Weerdenburg, S. (author), Shao, Y. (author), Seifert, Jacob (author), Horsten, R.C. (author), Coene, W.M.J.M. (author)
We demonstrate our beamline using a table-top HHG EUV source for lensless imaging application in reflection m ode. T he s ample r eflection fu nction is reconstructed using an auto-differentiation based ptychographic algorithm built on TensorFlow platform.
conference paper 2022
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Shao, Y. (author)
In this thesis we try to provide novel solutions to key problems related to imaging and imaging system. Imaging is usually referred to as the technique for reproducing the information of the object. In optics, we usually refer the object information to the light field in the object plane due to the interaction of the illumination field and the...
doctoral thesis 2021
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Shao, Y. (author), Urbach, Paul (author)
journal article 2021
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Lu, Xingyuan (author), Shao, Y. (author), Zhao, C.L. (author), Konijnenberg, A.P. (author), Zhu, Xinlei (author), Tang, Y. (author), Cai, Yangjian (author), Urbach, Paul (author)
We propose and experimentally demonstrate a noniterative diffractive imaging method for reconstructing the complex-valued transmission function of an object illuminated by spatially partially coherent light from the far-field diffraction pattern. Our method is based on a pinhole array mask, which is specially designed such that the...
journal article 2019
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Shao, Y. (author), Loktev, Mikhail (author), Tang, Y. (author), Bociort, F. (author), Urbach, Paul (author)
For advanced imaging systems, e.g., projection systems for optical lithography, spatially varying aberration calibration is of utmost importance to achieve uniform imaging performance over the entire field-of-view (FOV). Here we present an efficient, accurate, and robust spatially varying aberration calibration method using a pair of 2...
journal article 2019
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Lu, Xingyuan (author), Zhao, C.L. (author), Shao, Y. (author), Zeng, Jun (author), Konijnenberg, A.P. (author), Zhu, Xinlei (author), Popov, Sergei (author), Urbach, Paul (author), Cai, Yangjian (author)
In the theory of partial coherence, coherence singularities can occur in the spectral degree of coherence (SDOC): in case the fields at two different points are completely uncorrelated, the phase of the SDOC is undefined. For a partially coherent vortex beam, the detection of coherence singularities is linked to the measurement of topological...
journal article 2019
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Shao, Y. (author), Lu, Xingyuan (author), Konijnenberg, A.P. (author), Zhao, C.L. (author), Cai, Yangjian (author), Urbach, Paul (author)
The complete characterization of spatial coherence is extremely di cult because the mutual coherence function (MCF) is a complex-valued function of four independent Cartesian coordinates. This di culty limits the ability to control and to optimize the spatial coherence in a broad range of key applications. Here we propose an e cient and...
journal article 2018
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Strauch, M. (author), Shao, Y. (author), Bociort, F. (author), Urbach, Paul (author)
The increased usage of liquid lenses motivates us to investigate surface waves on the liquid's surface. During fast focal switching, the surface waves decrease the imaging quality. We propose a model that describes the surface modes appearing on a liquid lens and predicts the resonance frequencies. The effects of those surface modes on a...
journal article 2017
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Loktev, M. (author), Shao, Y. (author)
The application of Moiré effect for testing of a lithographic projection lens is reported. The arrangement presented allows measuring magnification, distortion, field curvature and telecentricity of the lens and can be used for its fine tuning. The method is based on two matched two-dimensional gratings, positioned in mutually conjugated...
conference paper 2017
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Botton, G.A. (author), Maunders, C. (author), Shao, Y. (author), Wu, M.Y. (author), Lazar, S. (author), Etheridge, J. (author), Whitfield, H.J. (author)
journal article 2007
Searched for: author%3A%22Shao%2C+Y.%22
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