Resolution improvement by single-exposure superresolved interferometric microscopy with a monochrome sensor

Alejandro Calabuig, Javier Garcia, Carlos Ferreira, Zeev Zalevsky, Vicente Micó

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Single-exposure superresolved interferometric microscopy (SESRIM) by RGB multiplexing has recently been proposed as a way to achieve one-dimensional superresolved imaging in digital holographic microscopy by a singlecolor CCD snapshot [Opt. Lett. 36, 885 (2011)]. Here we provide the mathematical basis for the operating principle of SESRIM, while we also present a different experimental configuration where the color CCD camera is replaced by a monochrome (B&W) CCD camera. To maintain the single-exposure working principle, the object field of view (FOV) is restricted and the holographic recording is based on image-plane wavelength-dispersion spatial multiplexing to separately record the three bandpass images. Moreover, a two-dimensional extension is presented by considering two options: Time multiplexing and selective angular multiplexing. And as an additional implementation, the FOV restriction is eliminated by varying the angle between the three reference beams in the interferometric recording. Experimental results are reported for all of the above-mentioned cases.

Original languageEnglish
Pages (from-to)2346-2358
Number of pages13
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume28
Issue number11
DOIs
StatePublished - Nov 2011

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