Illumination-direction multiplexing Fourier ptychographic microscopy using hemispherical digital condensers

Maged Alotaibi, Sueli Skinner-Ramos, Ali Alamri, Bader Alharbi, Mohammed Alfarraj, Luis Grave De Peralta

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Simulations were conducted to explore a broader collection of possible illumination patterns realizable using a white-light-emitting hemispherical digital condenser. Several simple, but practical, illumination patterns were selected and used in experiments where a sample was illuminated simultaneously from different directions. The illumination-direction multiplexing (IDM) Fourier ptychographic microscopy (FPM) method was successfully used for imaging and phase recovery. This study suggests that IDM-FPM can be used for imaging photonic crystals with subwavelength periods using traditional microscope condensers with variable numerical aperture.

Original languageEnglish
Pages (from-to)4052-4057
Number of pages6
JournalApplied Optics
Issue number14
StatePublished - May 10 2017


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