Browsing Institutt for fysikk by Author "Akram, Muhammad Nadeem"
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Fourier ptychography algorithm based on scaled Fourier transform
Hasanzade, Mojde; Hussain, Nazabat; Breiby, Dag Werner; Akram, Muhammad Nadeem (Peer reviewed; Journal article, 2021)This letter discusses an alternative Fourier ptychography algorithm based on the scaled fast Fourier transform propagation. The advantage of this scheme is that it enables a zoom-in capability of the object spectrum and ... -
High-resolution polarization-sensitive Fourier ptychography microscopy using a high numerical aperture dome illuminator
Gholamimayani, Mahdieh; Tekseth, Kim Robert Bjørk; Breiby, Dag Werner; Klein, Joern; Akram, Muhammad Nadeem (Peer reviewed; Journal article, 2022)Polarization-sensitive Fourier-ptychography microscopy (pFPM) allows for high resolution imaging while maintaining a large field of view, and without mechanical movements of optical-setup components. In contrast to ordinary ... -
Improved resolution Fourier ptychography scheme using oil-filled dome-shaped LED array
Gholamimayani, Mahdieh; Hussain, Nazabat; Breiby, Dag Werner; Akram, Muhammad Nadeem (Peer reviewed; Journal article, 2022)Utilising angular-varied illumination in Fourier Ptychography, the resolution of optical microscopes can be increased and the phase of the sample can also be recovered while maintaining a wide field-of-view. In this work, ... -
Wide field-of-view Fourier Ptychography microscopy based on Fresnel propagation scheme
Hasanzade, Mojde; Breiby, Dag Werner; Akram, Muhammad Nadeem (Peer reviewed; Journal article, 2022)Fourier ptychographic microscopy (FPM) is a computational imaging method that gives a significantly increased space-bandwidth product, in practice high resolution combined with a wide field of view. In this article, we ...