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106
A Polarized Look at the Universe
May 2009
invited colloquium at the ETH in Zurich, Switzerland
105
Plasma Diagnostics in Solar Physics
March 2009
invited review at the NNV Plasma Physics and Radiation Technology Annual Conference in Lunteren, The Netherlands
104
Future Directions of Magnetic Field Measurements
November 2008
invited review at the Solar-C Science Definition Meeting in Tokyo, Japan
103
Instrumentation Development for Exoplanet Science
May 2008
review at the Dutch Exoplanet Day in Amsterdam, The Netherlands
102
Polarimetry from the Ground Up
September 2007
invited review at the 5th Solar Polarization Workshop in Ascona, Switzerland
101
A Brief History of the Second Solar Spectrum
September 2007
contributed talk at the 5th Solar Polarization Workshop in Ascona, Switzerland
100
A Polarizing Look at the Universe
June 2007
invited public lecture at the Department Day at Utrecht University in Utrecht, The Netherlands
99
Solar Observation Prospects
April 2007
invited public review at the retirement party of R.J.Rutten in Utrecht, The Netherlands
98
Space Weather
January 2007
invited public lecture at the Utrecht Physics Society in Utrecht, The Netherlands
97
New observations of the magnetic vector field across the solar disk
November 2006
invited review at the 14th Cool Stars Workshop in Pasadena, USA
96
Imaging Extrasolar Planetary Systems in Polarized Light
November 2006
invited colloquium at the National Solar Obervatory in Tucson, USA
95
Solar Faculae Explained with Numerical MHD Simulations
November 2006
invited colloquium at the colloquium at the Radboud University in Nijmegen, The Netherlands
94
Solar Faculae Explained with Numerical MHD Simulations
June 2006
invited colloquium at the colloquium at the Rijksuniversiteit in Groningen, The Netherlands
93
Design of a Polarimeter for Extrasolar Planetary Systems Characterization
May 2006
conference talk at the SPIE meeting on Astronomical Telescopes and Instruments in Orlando, Florida, USA
92
Ground-Based Perspectives of Solar-B Science and Operations
April 2006
invited talk at the Solar-B Science Operations meeting in Tokyo, Japan
91
Future Instrumental Directions
April 2006
invited review at the European Science Foundation meeting on Future Large-Aperture Solar Telescopes in Rome, Italy
90
Imaging Extra-Solar Planetary Systems in Polarized Light
January 2006
invited review at the Nederlandse Astronomenclub meeting in Utrecht, The Netherlands
89
Explanation of recent solar discoveries with numerical MHD simulations
December 2005
invited colloquium at the FOM in Nieuwegein, The Netherlands
88
What High-resolution Solar Surface Observations can tell MHD Simulations
December 2005
invited colloquium at the ASTRON in Dwingeloo, The Netherlands
87
First Results from the SOLIS Vector-SpectroMagnetograph
August 2005
contributed lecture at the Fourth Solar Polarization workshop in Boulder, Colorado, USA
86
High-Resolution Surface Observations and What They Can Tell MHD Simulations
July 2005
invited review at the Summer Workshop on Solar MHD Theory and Observations - a High Spatial Resolution Perspective in Sacramento Peak, USA
85
Explanation of recent Swedish Solar Telescope discoveries with numerical MHD simulations
June 2004
colloquium at the Astronomical Institute, Utrecht University in Utrecht, The Netherlands
84
Explanation of recent Swedish Solar Telescope discoveries with numerical MHD simulations
May 2004
invited colloquium at the Stockholm University in Stockholm, Sweden
83
Weltraumwetter
May 2004
public talk at the Rotary lunch talk in Allschil, Switzerland
82
Solar Faculae Explained
March 2004
invited colloquium at the National Solar Observatory in Tucson, Arizona, USA
81
The SOLIS Vector-Spectromagnetograph
March 2004
invited colloquium at the Institute for Astronomy in Honolulu, Hawaii, USA
80
C3Po - The Ultimate focal plane array for imaging polarimetry from 200 nm to 20 um
March 2004
contribution at the Astronomical Polarimetry 2004 in Kona, Hawaii, USA
79
High-resolution Solar Physics in Antarctica
October 2003
invited colloquium at the University Observatory in Goettingen, Germany
78
Adaptive Optics Observations of the Sun
September 2003
invited review at the ESO Workshop on Science with Adaptive Optics in Munich, Germany
77
Adaptive Optics on a Shoestring Budget
September 2003
contribution at the Annual Meeting of the Astronomische Gesellschaft, Freiburg, Germany in
76
Charge caching CMOS Detector for Polarimetry (C3Po)
August 2003
colloquium at the SPIE Annual Meeting in San Diego, California, USA
75
SOLIS data handling
May 2003
invited lecture at the FASR Data Handling Workshop in University of Maryland, USA
74
Low-cost solar adaptive optics
January 2003
invited colloquium at the CTIO in La Serena, Chile
73
Polarimetry with the Advanced Technology Solar Telescope
October 2002
invited review at the third international workshop on Solar Polarization in Tenerife, Spain
72
The SOLIS Vector-Spectromagnetograph
October 2002
contribution at the Third international workshop on Solar Polarization in Tenerife, Canary Islands
71
Solar polarimetry close to the diffraction limit
August 2002
invited review at the SPIE meeting in Hawaii, USA
70
SOLIS, an innovative suite of solar synoptic instruments
August 2002
contribution at the SPIE meeting in Kona, Hawaii, USA
69
Low-cost solar adaptive optics in the infrared
August 2002
colloquium at the SPIE meeting in Kona, Hawaii, USA
68
Observational signatures of a small-scale global dynamo
June 2002
contribution at the Annual meeting of the Solar Physics Division of the American Astronomical Society in Albuquerque, New Mexico, USA
67
The Frequency Agile Solar Radio Telescope and the Quiet Sun
May 2002
invited review at the Science Definition Workshop for the Frequency Agile Solar Radio Telescope in Green Bank, USA
66
The Advanced Technology Solar Telescope
May 2002
invited review at the first Thinkshop on Starpots and Sunspots in Potsdam, Germany
65
SOLIS
April 2002
invited review at the Space Weather Week in Boulder, Colorado, USA
64
Polarimetry with the Advanced Technology Solar Telescope
March 2002
invited review at the Sacramento Peak Workshop in New Mexico, USA
63
Experience with the Flare Genesis Experiment
October 2001
contribution at the First Sunrise meeting in Lindau, Germany
62
Conference Summary
April 2001
invited review at the NASA Science Definition Workshop on Solar Satellites Beyond Solar-B in Huntsville, Alabama, USA
61
Solar chromospheric magnetic fields
January 2001
invited review at the ESO conference on Magnetic Fields across the Hertzsprung-Russell Diagram in Santiago, Chile
60
Instrumentation for Astrophysical Spectropolarimetry
November 2000
invited lecture series at the IAC winter school on Astrophysical Spectropolarimetry in Tenerife, Spain
59
High-resolution observations of photospheric magnetic fields
October 2000
invited colloquium at the High-Altitude Observatory in Boulder, Colorado, USA
58
High-resolution polarimetry and the need for a large-aperture solar telescope
September 2000
invited review at the Sacramento Peak Summer Workshop in Sunspot, New Mexico, USA
57
The SOLIS Vector-Spectromagnetograph
September 2000
contribution at the Sacramento Peak Summer Workshop in Sunspot, New Mexico, USA
56
Evolution of small-scale magnetic fields from combined adaptive optics and phase-diverse speckle imaging
June 2000
invited review at the opening lecture at the Solar Physics Division meeting in Lake Tahoe, USA
55
New Initiatives for Synoptic Observations
December 1999
invited review at the IAU Colloquium 179 in Kodaikanal, India
54
Polarimetry at the 1E-6 level
May 1999
colloquium at the National Solar Observatory in Sunspot, New Mexico, USA
53
SOLIS - A modern facility for synoptic solar observations
May 1999
colloquium at the NOAO in Tucson, Arizona, USA
52
SOLIS - A modern facility for synoptic solar observations
April 1999
contribution at the NOAA/SEC Space Weather Week in , Boulder, Colorado, USA
51
5000 by 5000 spatial by 15000 spectral resolution elements: first astronomical observations with a novel 3-D detector
March 1999
contribution at the conference on Imaging the Universe in Three Dimensions in Walnut Creek, California, USA
50
Polarimetry at the 1E-6 level
February 1999
invited review at the THEMIS meeting of the Groupe polarization faible in Paris, France
49
Scattering Polarization in the Chromosphere
October 1998
contribution at the Second International Workshop on Solar Polarization in Bangalore, India
48
An Advanced Solar Telescope: Science Aspects
September 1998
invited contribution at the 19th Sacramento Peak Summer Workshop in Sunspot, New Mexico, USA
47
Optimum apodization for speckle reconstruction of extended sources
September 1998
contribution at the 19th Sacramento Peak Summer Workshop in Sunspot, New Mexico, USA
46
SOLIS - A modern facility for synoptic solar observations
March 1998
contribution at the SPIE Conference 3352 in Kona, Hawaii, USA
45
SOLIS Instrument Aspects
September 1997
invited review at the Sacramento Peak workshop on Synoptic Solar Physics in Sunspot, USA
44
Asteroseismology from Equivalent Widths: A Test of the Sun
August 1997
contribution at the IAU Symposium 185 in Kyoto, Japan
43
Science Opportunities for a Large-Aperture Solar Telescope
July 1997
invited review at the Meeting of the NRC Task Group for Ground-Based Solar Physics in Washington DC, USA
42
Chromospheric Events in the Quiet Network
June 1997
contribution at the SPD/AAS meeting in Bozeman, Montana, USA
41
Concept for a Miniature Solar Magnetograph
August 1996
contribution at the SPIE Meeting in Denver, Colorado, USA
40
Observations of Small-Scale Magnetic Fields. What's Next?
July 1996
invited review at the Solar Magnetism Initiative workshop in High Altitude Observatory, Boulder, USA
39
Weak Magnetic Fields in the Solar Photosphere
October 1995
colloquium at the Steward Observatory of the University of Arizona in Tucson, Arizona, USA
38
Diffraction-limited Time Sequences of the Solar Atmosphere
September 1995
invited contribution at the Big Bear Solar Observatory Legacy meeting in Big Bear, California, USA
37
Weak Magnetic Fields in the Network
June 1995
contribution at the SPD/AAS meeting in Memphis, Tennessee, USA
36
Stokes Imaging in the Visible and the Near-Infrared
May 1995
invited review at the workshop on Solar Polarization in St.Petersburg, Russia
35
Balloon-borne Polarimetry: the Flare Genesis Experiment
May 1995
contribution at the Workshop on Solar Polarization in St.Petersburg, Russia
34
Application of Persistent Spectral Hole-Burning in Astronomy
May 1995
colloquium at the Laboratory of Physical Chemistry, ETH Zurich in Switzerland
33
Spectroscopic observations of weak magnetic fields
March 1995
colloquium at the National Solar Observatory in Tucson, Arizona, USA
32
Strong and weak magnetic fields in the solar photosphere
February 1995
colloquium at the California Institute of Technology in Pasadena, California, USA
31
Spectroscopic observations of weak magnetic fields
January 1995
colloquium at the Kiepenheuer Institut fuer Sonnenphysik in Freiburg, Germany
30
Infrared capabilities of the Large Earth-based Solar Telescope
September 1994
invited review at the Sacramento Peak Workshop on Infrared Tools for Solar Astrophysics: What's Next? in Sunspot, New Mexico, USA
29
High resolution observations of solar magnetic fluxtubes
September 1994
invited review at the Biermann-Award Lecture at the General Assembly of the Astronomische Gesellschaft in Potsdam, Germany
28
High-sensitivity polarimetry with the Zurich Imaging Stokes Polarimeter I
July 1994
colloquium at the National Solar Observatory in Sacramento Peak, USA
27
Zurich Imaging Stokes Polarimeters I and II
July 1994
contribution at the SPIE Annual Meeting in San Diego, California, USA
26
Diffraction-limited slit spectrography
July 1994
contribution at the SPIE Annual Meeting in San Diego, California, USA
25
Recent Observations of Solar Non-Network Fields with ZIMPOL I
May 1994
contribution at the American Geophysical Union/Solar Physics Division meeting in Baltimore, Maryland, USA
24
LEST Polarimetry
November 1993
invited review at the NATO Advanced Research Workshop on Solar Surface Magnetism in Soesterberg, The Netherlands
23
Speckle Polarimetry
November 1993
invited review at the NATO Advanced Research Workshop on Solar Surface Magnetism in Soesterberg, The Netherlands
22
High Resolution Observations of Solar Magnetic Fields
September 1993
invited colloquium at the Max-Planck-Institut fuer Physik und Astrophysik in Munich, FRG
21
High spatial resolution observations of solar magnetic fields
July 1993
contribution at the International Conference on Solar Magnetic Fields in Freiburg, Germany
20
High Resolution Observations of Solar Magnetic Fields
April 1993
invited colloquium at the European Space Research and Technology Center of ESA in Noordwijk, The Netherlands
19
Speckle Observations of Solar Magnetic Fields
February 1993
invited colloquium at the Utrecht University in Utrecht, The Netherlands
18
High Resolution Observations of Solar Magnetic Fields
January 1993
invited colloquium at the Observatoire de Paris in Meudon, France
17
Technical Aspects of High Resolution Solar Polarimetry
December 1992
colloquium at the Environmental Research Institute of Michigan in Ann Arbor, USA
16
High Resolution Solar Polarimetry
December 1992
colloquium at the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, USA
15
Speckle Polarimetric Observations of the Solar Magnetic Field
October 1992
contribution at the General Assembly of the Swiss Society for Astrophysics and Astronomy in Basel, Switzerland
14
Small-scale structures in active regions
September 1992
invited review at the IAU Coll.\ 141 on The Magnetic and Velocity Fields of Solar Active Regions in Beijing, China
13
Narrow-band Speckle Imaging
September 1992
contribution at the Thirteenth Sacramento Peak Summer Workshop on Real Time and Post Facto Solar Image Correction in Sunspot, New Mexico, USA
12
Solar Image Processing in Zurich: GAP and KISIP
August 1992
invited review at the LEST Mini Colloquium on Solar Image Processing Software in Oslo, Norway
11
Technical Aspects of High Resolution Polarimetry
June 1992
colloquium at the LEST Engineering Group in Risoe, Denmark
10
High Resolution Observations of Solar Magnetic Fields
May 1992
colloquium at the University of Bern in Bern, Switzerland
9
Application of Differential Speckle Imaging to Solar Polarimetry
November 1991
contribution at the ESO Conference on High Resolution Imaging by Interferometry II in Munich, FRG
8
High Resolution Observations of Solar Magnetic Fields
August 1991
invited review at the IAU General Assembly in Buenos Aires, Argentina
7
High Spatial Resolution Polarimetry using Filtergrams
August 1990
contribution at the Eleventh Sacramento Peak Summer Workshop on Solar Polarimetry in Sunspot, New Mexico, USA
6
Inversion of Stokes V Profiles: The structure of solar magnetic fluxtubes and its dependence on the filling factor
August 1990
contribution at the Eleventh Sacramento Peak Summer Workshop on Solar Polarimetry in Sunspot, New Mexico, USA
5
Polarimetry at high spatial resolution
May 1990
invited colloquium at the University of Wuerzburg in Wuerzburg, FRG
4
The Link to Ground Based Solar Astronomy, An Example: Small-scale magnetic elements
August 1989
invited review at the Workshop on Swiss Investigations with SOHO in Davos, Switzerland
3
Empirical Photospheric Fluxtube Models from inversion of Stokes V data
May 1989
contribution at the IAU Symposium 138, Solar Photosphere: Structure, Convection, Magnetic Fields in Kiev, USSR
2
Restoration of Distorted Images as a Variational Problem: a Dynamic Programming Approach
August 1988
contribution at the Tenth Sacramento Peak Summer Workshop on High Spatial Resolution Solar Observations in Sunspot, New Mexico, USA
1
Inversion of Stokes V Profiles: Empirical Fluxtube Models
July 1988
colloquium at the National Solar Observatory in Sunspot, New Mexico, USA