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Authors: Mahdieh Mayani 1 ; Nazabat Hussain 1 ; Kim Tekseth 2 ; Dag Breiby 2 ; 1 and Muhammad Akram 1

Affiliations: 1 Department of Microsystems, University of South-Eastern Norway (USN), Norway ; 2 Department of Physics, Norwegian University of Science and Technology (NTNU), Norway

Keyword(s): Fourier Ptychographic Microscopy, High Resolution, High Synthetic Numerical Aperture, Dome LED Array.

Abstract: Fourier Ptychographic microscopy has been proven to both increase the resolution of optical microscopes and retrieve the phase of objects using angular-varied illumination while maintaining a wide field-of-view. This work focuses on an improvement in the achieved half-pitch resolution, experimentally from 274 nm to 217 nm, by decreasing the operating wavelength from 630 nm to 470 nm. A high synthesized numerical aperture of 1.1 is obtained using 217 LEDs on a dome illuminator where the light is collected by a 10x/ 0.28NA objective lens. The experimental results closely match the theoretical prediction. As practical examples, two cartilage samples are analyzed and quantitatively imaged in this study.

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Paper citation in several formats:
Mayani, M.; Hussain, N.; Tekseth, K.; Breiby, D. and Akram, M. (2023). Multi-Wavelength High-Resolution Fourier Ptychographic Microscopy Using a Hemispherical LED Array. In Proceedings of the 11th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-758-632-3; ISSN 2184-4364, SciTePress, pages 17-20. DOI: 10.5220/0011594100003408

@conference{photoptics23,
author={Mahdieh Mayani. and Nazabat Hussain. and Kim Tekseth. and Dag Breiby. and Muhammad Akram.},
title={Multi-Wavelength High-Resolution Fourier Ptychographic Microscopy Using a Hemispherical LED Array},
booktitle={Proceedings of the 11th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2023},
pages={17-20},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011594100003408},
isbn={978-989-758-632-3},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 11th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Multi-Wavelength High-Resolution Fourier Ptychographic Microscopy Using a Hemispherical LED Array
SN - 978-989-758-632-3
IS - 2184-4364
AU - Mayani, M.
AU - Hussain, N.
AU - Tekseth, K.
AU - Breiby, D.
AU - Akram, M.
PY - 2023
SP - 17
EP - 20
DO - 10.5220/0011594100003408
PB - SciTePress

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