Fourier ptychographic microscopy using an infrared-emitting hemispherical digital condenser

Sanchari Sen; Ishtiaque Ahmed; Batool Aljubran; Ayrton A. Bernussi; Luis Grave De Peralta

doi:10.1364/AO.55.006421

Fourier ptychographic microscopy using an infrared-emitting hemispherical digital condenser

Sanchari Sen, Ishtiaque Ahmed, Batool Aljubran, Ayrton A. Bernussi, Luis Grave De Peralta

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21 Scopus citations

Abstract

Fourier ptychographic microscopy is demonstrated in the near-infrared spectral range using a computer-controlled hemispherical digital condenser comprising multiple 940 nm wavelength light emitting diodes. This technique was used to image periodic patterned samples (photonic crystals). Experimental and simulated results using a phase retrieval algorithm were found to be in excellent correspondence. We show that for samples with a single period in each direction, the resolution of the obtained high-resolution near-infrared images is limited by the Rayleigh criteria.

Original language	English
Pages (from-to)	6421-6427
Number of pages	7
Journal	Applied Optics
Volume	55
Issue number	23
DOIs	https://doi.org/10.1364/AO.55.006421
State	Published - Aug 10 2016

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abstract = "Fourier ptychographic microscopy is demonstrated in the near-infrared spectral range using a computer-controlled hemispherical digital condenser comprising multiple 940 nm wavelength light emitting diodes. This technique was used to image periodic patterned samples (photonic crystals). Experimental and simulated results using a phase retrieval algorithm were found to be in excellent correspondence. We show that for samples with a single period in each direction, the resolution of the obtained high-resolution near-infrared images is limited by the Rayleigh criteria.",

author = "Sanchari Sen and Ishtiaque Ahmed and Batool Aljubran and Bernussi, {Ayrton A.} and {De Peralta}, {Luis Grave}",

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AU - Ahmed, Ishtiaque

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AU - Bernussi, Ayrton A.

AU - De Peralta, Luis Grave

PY - 2016/8/10

Y1 - 2016/8/10

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AB - Fourier ptychographic microscopy is demonstrated in the near-infrared spectral range using a computer-controlled hemispherical digital condenser comprising multiple 940 nm wavelength light emitting diodes. This technique was used to image periodic patterned samples (photonic crystals). Experimental and simulated results using a phase retrieval algorithm were found to be in excellent correspondence. We show that for samples with a single period in each direction, the resolution of the obtained high-resolution near-infrared images is limited by the Rayleigh criteria.

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DO - 10.1364/AO.55.006421

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Fourier ptychographic microscopy using an infrared-emitting hemispherical digital condenser

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