Tristan Colomb

TL;DR: A digital holographic microscope, in a transmission mode, especially dedicated to the quantitative visualization of phase objects such as living cells, is developed, based on an original numerical algorithm presented in detail elsewhere.

TL;DR: Digital holographic microscopy is applied to perform optical diffraction tomography of a pollen grain for the first time, with a precision of 0.01 for the refractive index estimation and a spatial resolution in the micrometer range.

TL;DR: A procedure that compensates for phase aberrations in digital holographic microscopy by computing a polynomial phase mask directly from the hologram, which enables one to reconstruct correct and accurate phase distributions, even in the presence of strong and high-order aberration.

TL;DR: In this paper, a technique to perform two-wavelengths digital holographic microscopy (DHM) measurements with a single hologram acquisition is presented, where the vertical measurement range without phase ambiguity is extended to the micron range, thanks to the resulting synthetic wavelength defined by the beating of two wavelengths with a separation of about 80nm.

TL;DR: It is shown that operations usually performed by optical components and described in ray geometrical optics, such as image shifting, magnification, and especially complete aberration compensation, can be mimicked by numerical computation of a NPL.