Transfer function analysis in epi-illumination Fourier ptychography

Shaun Pacheco; Basel Salahieh; Thomas D Milster; Jeffrey J Rodriguez; Rongguang Liang

doi:10.1364/OL.40.005343

Transfer function analysis in epi-illumination Fourier ptychography

Shaun Pacheco, Basel Salahieh, Thomas D Milster, Jeffrey J Rodriguez, Rongguang Liang

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17 Scopus citations

Abstract

This Letter explores Fourier ptychography (FP) using epiillumination. The approach effectively modifies the FP transfer function to be coherent-like out to the incoherent limit of twice the numerical aperture over the wavelength 2NA/λ. Images reconstructed using this approach are shown to have higher contrast at finer details compared with images using incoherent illumination, indicating that the FP transfer function is superior in high spatial frequency regions.

Original language	English (US)
Pages (from-to)	5343-5346
Number of pages	4
Journal	Optics Letters
Volume	40
Issue number	22
DOIs	https://doi.org/10.1364/OL.40.005343
State	Published - Nov 15 2015

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ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Cite this

Pacheco, S., Salahieh, B., Milster, T. D., Rodriguez, J. J., & Liang, R. (2015). Transfer function analysis in epi-illumination Fourier ptychography. Optics Letters, 40(22), 5343-5346. https://doi.org/10.1364/OL.40.005343

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10.1364/OL.40.005343