Increasing the resolution of an optical microscope via Fourier ptychography

Authors

Christene P. Necesario ⋅ PH National Institute of Physics, University of the Philippines Diliman
Maricor N. Soriano ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We demonstrate the conversion of an imaging microscope into one with higher resolution using Fourier Ptychography Microscopy (FPM). A stereomicrosope is used for this experiment, and in one of its eyepieces, a mobile phone camera is positioned. A 7×7 red LED array controlled by an Arduino microcontroller is used as the shifting light source. The FPM algorithm was implemented using MATLAB. With the modulation transfer function (MTF) of slanted edge images serving as the reference for comparison, the reconstructed amplitude from FPM exhibited an improved MTF when compared to the center image, indicating that the resolution has increased.

Downloads

Issue

2023: Proceedings of the 41st Samahang Pisika ng Pilipinas Physics Conference

Physics: Connecting islands of knowledge
19-21 July 2023, Del Carmen, Siargao Island

Please visit the SPP2023 activity webpage for more information on this year's Physics Congress.

Article ID

SPP-2023-3B-07

Section

Optics and Photonics

Published

2023-07-12

How to Cite

[1]

CP Necesario and MN Soriano, Increasing the resolution of an optical microscope via Fourier ptychography, Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-3B-07 (2023). URL: https://proceedings.spp-online.org/article/view/SPP-2023-3B-07.