Single-exposure super-resolved interferometric microscopy by RGB multiplexing in lensless configuration. (July 2016)

• Record Type: Journal Article
• Authors: Granero, Luis; Ferreira, Carlos; Zalevsky, Zeev; García, Javier; Micó, Vicente
• Is Part Of: Optics and lasers in engineering. Volume 82(2016)
• Page Start: 104
• Page End: 112
• Publication Date: 2016-07
• Subjects: Image reconstruction techniques -- Digital holography -- Microscopy -- Synthetic aperture generation -- Superresolution; Lasers in engineering -- Periodicals; Optical measurements -- Periodicals; Optics -- Periodicals; Lasers en ingénierie -- Périodiques; Mesures optiques -- Périodiques; Optique -- Périodiques; 621.36605
• DOI: 10.1016/j.optlaseng.2016.02.010
• Languages: English
• ISSNs: 0143-8166

Abstract

Abstract: Single-Exposure Super-Resolved Interferometric Microscopy (SESRIM) reports on a way to achieve one-dimensional (1-D) superresolved imaging in digital holographic microscopy (DHM) by a single illumination shot and digital recording. SESRIM provides color-coded angular multiplexing of the accessible sample׳s range of spatial frequencies and it allows their recording in a single CCD (color or monochrome) snapshot by adding 3 RGB coherent reference beams at the output plane. In this manuscript, we extend the applicability of SESRIM to the field of digital in-line holographic microscopy (DIHM), that is, working without lenses. As consequence of the in-line configuration, an additional restriction concerning the object field of view (FOV) must be imposed to the technique. Experimental results are reported for both a synthetic object (USAF resolution test target) and a biological sample (swine sperm sample) validating this new kind of superresolution imaging method named as lensless SESRIM (L-SESRIM). Highlights: SESRIM has been expanded to the lensless case. L-SESRIM allows superresolution imaging using FOV multiplexing. L-SESRIM allows superresolution imaging using FOV multiplexing.