title: Coherence effects in digital in-line holographic microscopy.
abstract: We analyze the effects of partial coherence in the image formation of a digital in-line holographic microscope (DIHM). The impulse response is described as a function of cross-spectral density of the light used in the space-frequency domain. Numerical simulation based on the applied model shows that a reduction in coherence of light leads to broadening of the impulse response. This is also validated by results from experiments wherein a DIHM is used to image latex beads using light with different spatial and temporal coherence.
authors.affiliation: Institut für Technische Optik, Universitäat Stuttgart, Pfaffenwaldering 9, Stuttgart, Germany. unni.gopinathan@gmail.com
authors.forename: Unnikrishnan
authors.initials: U
authors.lastname: Gopinathan
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Pedrini
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Osten