Current research topics
Upgrade of SPHERE at the VLT.
Highly-multiplexed Bragg gratings for optically adding spectral lines
Maximizing the contrast instead of minimizing wavefront aberrations.
Improving the polarimetric sensitivity by understanding beamshifts
EST is a 4-meter class solar telescope, to be located in the Canary Islands. We were part of the EST FP-7 design study grant and were in charge of the polarization optics as well as the building and the dome. for this telescope.
ExoPlanet Imager and Characterization Instrument for the Extremely Large Telescope (ELT)
Imaging polarimeter for the 4.2-m William Herschel Telescope
First PC-controlled adaptive otics for a large solar telescope.
Synoptic Optical Long-term Investigations of the Sun (SOLIS) is a synoptic facility for solar observations over a long time frame that is funded by the NSF and designed and built by the National Solar Observatory.
Astronomical adaptive optics technology is used to dramatically enhance the spatial resolution of in-vivo two-photon microscopy of thick optical tissues.
The HARPS instrument at La Silla, Chile is famous for its planet detections through the radial velocity method. We upgraded it to a precise spectropolarimeter by replacing the obsolete Iodine cell in the Cassegrain adapter with a dual-beam polarimetry unit.