New paper accepted to Optics Letters

New paper in Optics Letters, Vol. 39, No. 6, 1525-1528, 2014:

Off-axis interferometric phase microscopy with tripled imaging area

Irena Frenklach, Pinhas Girshovitz, and Natan T. Shaked

Abstract: We present a novel interferometric approach, referred as interferometry with tripled-imaging area (ITIA), for tripling the quantitative information that can be collected in a single camera exposure, while using off-axis interferometric imaging. This The ITIA technique enables optical multiplexing of three off-axis interferograms onto a single camera sensor, without changing the imaging-system characteristics, such as magnification and spatial resolution, or losing temporal resolution (no scanning is involved). This approach is useful for many applications in which interferometric and holographic imaging are used. Our experimental demonstrations include quantitative phase microscopy of a USAF 1951 test target, thin diatom shells and live human cancer cells.

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ITIA for quantitative phase imaging of HeLa cells. In muted colors – the scanned field of view (FOV), which is larger than the camera FOV. Three quantitative phase images reconstructed from a single multiplexed interferogram acquired simultaneously, without any scanning. Scale bar indicates 50 μm.