Single capture bright field and off-axis digital holographic microscopy
José Ángel Picazo-Bueno, Álvaro Barroso, Steffi Ketelhut, Jürgen Schnekenburger, Vicente Micó, Björn Kemper
Abstract
We report on a single capture approach for simultaneous incoherent bright field (BF) and laser-based quantitative phase imaging (QPI). Common-path digital holographic microscopy (DHM) is implemented in parallel with BF imaging within the optical path of a commercial optical microscope to achieve spatially multiplexed recording of white light images and digital off-axis holograms, which are subsequently numerically demultiplexed. The performance of the proposed multimodal concept is firstly determined by investigations on microspheres. Then, the application for label-free dual-mode QPI and BF imaging of living pancreatic tumor cells is demonstrated.