Jonas Kühn

TL;DR: The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument as discussed by the authors is a multiband instrument which makes use of light from 600 to 2500 nm, allowing for coronagraphic direct exoplanet imaging of the inner 3λ/D from the stellar host.

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.

TL;DR: A new method to achieve quantitative phase contrast imaging in Digital Holographic Microscopy that allows to compensate for phase aberrations and image distortion by recording of a single reference hologram is presented.