Alfred de Wijn | High Altitude Observatory

Image instabilities and polarization cross-talk

polarization cross-talk

Erratum: Analysis of Seeing-Induced Polarization Cross-Talk and Modulation Scheme Performance

Graph of polarimetric errors

First Observation of Chromospheric Waves in a Sunspot by DKIST/ViSP

Chromospheric Waves in a Sunspot by DKISTViSP

First Observation of Chromospheric Waves in a Sunspot by DKIST/ViSP

Alfred De Wijn and Roberto Cassini installing ViSP

Derivation of Instrument Requirements for Polarimetry using Mg, Fe, and Mn lines between 250 and 290 nm

IRIS map

Effects of spectral resolution on simple magnetic field diagnostics of the Mg II h & k lines

3 Scatter density plots of the retrieved value of Blos

Solar Transition Region UltraViolet Explorer (STRUVE) requirements flow down to design

Flow chart showing requirements from 3 science questions

A Rare Transit of Venus Across the Sun

Venus in the corona

Design of a Highly Efficient Polychromatic Full-Stokes Polarization Modulator for the CRISP Imaging Spectrometer

Example spectro-polarimetric data of Active Region 12471 in the Fe I lines at 630.2 nm

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