Transfer function analysis in epi-illumination Fourier ptychography

Shaun Pacheco; Basel Salahieh; Tom Milster; Jeffrey J. Rodriguez; Rongguang Liang

doi:10.1364/OL.40.005343

Transfer function analysis in epi-illumination Fourier ptychography

Shaun Pacheco, Basel Salahieh, Tom Milster, Jeffrey J. Rodriguez, Rongguang Liang

Research output: Contribution to journal › Article › peer-review

27 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

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Transfer function analysis in epi-illumination Fourier ptychography",

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.",

author = "Shaun Pacheco and Basel Salahieh and Tom Milster and Rodriguez, {Jeffrey J.} and Rongguang Liang",

note = "Funding Information: National Institutes of Health (NIH) (5R21GM104665, NIH T32EB000809). The authors would like to thank Dr. Guoan Zheng and Dr. Lei Tian for their helpful discussions and MATLAB code used to reconstruct the experimental data.",

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AU - Salahieh, Basel

AU - Milster, Tom

AU - Rodriguez, Jeffrey J.

AU - Liang, Rongguang

N1 - Funding Information: National Institutes of Health (NIH) (5R21GM104665, NIH T32EB000809). The authors would like to thank Dr. Guoan Zheng and Dr. Lei Tian for their helpful discussions and MATLAB code used to reconstruct the experimental data.

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AB - 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.

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Transfer function analysis in epi-illumination Fourier ptychography

Abstract

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