Molecular hydrogen at the heart of physics
Colloquium Differ Institute
Eindhoven, The Netherlands, 24 April 2025
Spectroscopy of H2 at the limits
Past, present, and future: a scientific journey with
Christian Jungen and Chris Greene
Paris-Saclay, France, 12-13 Dec 2024
Precision measurement of H + H scattering resonances
International Conference on Chemical Dynamics 2024
Shenzen, China, 1-5 Dec 2024
Precision Measurements of Molecular Hydrogen for testing QED and the Search for New Physics
T.C. Wang Lecture at the APM institute of the Chinese Academy of Sciences, Wuhan
Wuhan, China, 26 Nov 2024
Lecture Series on Precision metrology with NICEOHMS
1) Saturation spectroscopy of HD and HT and the lineshape issue
2) Saturation of the H2 vibrational quadrupole and some new phenomena; Lethokov-Chebotaev trapping
3) From effective Hamiltonians to Network theory in spectroscopy; the case of water isotopologues
University of Science and Technology China
Hefei, China, 11-20 Nov 2024
Precision measurements of molecular hydrogen in search for new physics
Seminar University of Science and Technology China
Hefei, China, 18 Nov 2024
Precision measurements of molecular hydrogen for testing QED
and the search for new physics
REHE Conference 2024
Amersfoort, Netherlands, 8 Oct 2024
Precision measurements of molecular hydrogen in search for new physics
Colloquium Rzeszow University
Rzeszow, Poland, 11 Sep 2024
Precision measurements on the (2-0) quadrupole transitions in H2
PSAS Meeting 2024
Zurich, Switzerland, 11 June 2024
Precision Measurements of the Hydrogen Molecule in Search for New Physics
AMOC2024: Atoms, Molecules and Clusters in Motion Conference
Champs-sur-Marne, France, 15-18 April 2024
Harold, a wizard of cavity ring-down spectroscopy
Symposium in honour of Harold Linnartz
Leiden, Netherlands, 13 April 2024
Precision Measurements of Molecular Hydrogen
in Search for New Physics
Universite catholique Louvain la Neuve
Louvain la Neuve, Belgium, 15 February 2024
Precision Measurements of Molecular Hydrogen
in Search for New Physics
National Laboratory for Photonic, Optical and Quantum Technologies
Warsaw, Poland, 19 October 2023
Cavity-enhanced spectroscopy on water, HD, HT and H2
Colloquium Nicolas Copernicus University Torun
Torun, Poland, 18 October 2023
Searches for New Physics via Precision Measurements of Hydrogen Molecules
NNV-AMO meeting
Egmond, Netherlands, 10 October 2023
Sensing the quantum
Lorentz workshop: Ultracold quantum sensing
Leiden, Netherlands, 17 April 2023
Light extinction, Rayleigh-Brillouin scattering
and absorption in the Earth's atmosphere and in dilute and dense gases
Thomas Keynote Lecture
32nd International Symposium on Rarefied Gas Dynamics
Seoul, Korea, 5 July20 22
QED tests in hydrogen molecules
The 25th International Conference of Spectral Line Shapes
Caserta, Italy, 19-24 June 2022
Precision measurements on molecular hydrogen in search for new physics
ITN Spring School; Modular Systems for Advanced Integrated Quantum Clocks
Amsterdam, The Netherlands, 25 May 2022
Laser Optical Measurements and Astronomical Observations in Search for Varying Constants
Monthly Colloquium of the Optics and Photonics Society of Iran
Online, Iran, 13 April 2022
Precision measurements in molecular hydrogen in search for new physics
739. Herauus Seminar: Molecular Physics and Physical Chemistry with Advanced Photon Sources (invited)
Bad Honnef, Germany, 30 Jan. 2022
Physics beyond the Standard Model from hydrogen molecules
Physics Colloquium Universitat Bonn
Bonn, Germany, 30 Oct. 2020 - online
Physics beyond the Standard Model from hydrogen molecules
Deutsche Physikalische Gesellschaft (invited)
Hannover, Germany, 13 Mar. 2020 / Canceled
Later on-line in 2021
Physics beyond the Standard Model from hydrogen molecules
Enrico Fermi Colloquium at LENS - European Laboratory for Non-Linear Spectroscopy
Firenze, Italy, 24 Jan. 2020
Molecules, their intercation with light and their dissociation
ARCNL Tutorial colloquium
Amsterdam, Netherlands, 8 Jan. 2020
Molecules in the early Universe and the Laws of Physics
Lecture TU\e
Eindhoven, Netherlands, 9 Dec. 2019
Physics beyond the Standard Model from hydrogen molecules
Colloquium Nikhef
Amsterdam, Netherlands, 22 Nov. 2019
Investigations of a laser-produced microdroplet tin-plasma as a source of extreme ultraviolet radiation for nanolithography
iCOMET 2019
Hefei, China, 23 Sep 2019
Precision spectroscopic measurements on tritium-bearing molecular hydrogen isotopologues
The 26th Colloquium on High resolution molecular spectroscopy
Dijon, France, 26-30 August 2019
Physics beyond the Standard Model from hydrogen molecules
Quantum Metrology and Physics beyond the Standard Model
Hannover, Germany, 13 June 2019
Physics beyond the Standard Model from hydrogen molecules
50th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Milwaukee, USA, 29 May 2019
Are the constants of nature rock-solid and eternal ?
Fysica 2019; Meeting of the Netherlands Physical Society
Amsterdam, Netherlands, 5 April 2019
Physics beyond the Standard Model from hydrogen molecules
Colloquium at the Laboratoire interdisciplinaire Carnot de Bourgogne
Dijon, France, 19 March 2019
The Nature of Physical Law in a Dynamical Universe
Faculty Colloquium, TU Eindhoven
Eindhoven, Netherlands, 6 Dec 2018
Carbon Chain Spectroscopy
Dutch Astrochemistry Network Meeting: Gas-phase and Ice themes
Leiden, Netherlands, 28 Nov 2018
Physics beyond the Standard Model from hydrogen molecules
IFN Day 2018 Polo del Ecco del CNR e del Politecnico di Milano
Lecco, Italy, 17 Oct 2018
Physics beyond the Standard Model from hydrogen molecules
Colloquium Universite de Paris 13 Nord Villetaneuse
Paris, France, 19 Oct 2018
Physics beyond the Standard Model from hydrogen molecules
Fundamental Constants: Basic Physics and Units;
670. WE-Heraeus-Seminar
Bad Honnef, Germany, 14 May 2018
Physics beyond the Standard Model from hydrogen molecules
7-th International Symposium on Symmetries in Physics
Aachen, Germany, 11-15 June 2018
Sensitive detection of molecules with lasers; Cavity Ring-Down Spectroscopy
Colloquium ARCNL
Amsterdam, 9 May 2018
Physics beyond the Standard Model from hydrogen molecules
Harrie Massey Lecture at University College London
London, UK, 17 Jan 2018
Precision spectroscopy of molecular hydrogen and the search for new physics
Colloquium Max Planck Institut fur Kernphysik, Heidelberg
Heidelberg, Germany, 30 November 2017
Molecules as probes for new physics: varying constants, chameleons, fifth forces and higher dimensions
Lorentz Workshop: Dark energy in the laboratory
Leiden, Netherlands, 15 November 2017
Physics beyond the Standard Model from hydrogen molecules
Colloquium University of Science and Technology China
Hefei, China, 9 November 2017
Scattering and absorption of molecules in the Earth’s atmosphere
Colloquium: Huazhong University, Wuhan
Wuhan, China, 6 November 2017
Precision spectroscopy of molecular hydrogen and the search for new physics
Nanolight, Symposium in honor of the landmark birthday of Niek van Hulst - ICFO
ICFO Barcelona, Spain, 20 October 2017
Physics beyond the Standard Model from molecules
Colloquium Department of Physical Chemistry, Basel University
Basel, Switzerland, 18 October 2017
Physics beyond the Standard Model from molecules
Colloquium AMOLF
Amsterdam, Netherlands, 11 September 2017
Precision spectroscopy in molecular hydrogen beams in search for new physics
International Symposium on Molecular Beams
Nijmegen, Netherlands, 29 June 2017
SPECTROSCOPY OF HIGHLY CHARGED TIN IONS FOR AN EXTREME ULTRAVIOLET LIGHT SOURCE FOR LITHOGRAPHY
International Symposium on Molecular Spectroscopy
Champaign-Urbana, USA, 23 June 2017
PRECISION SPECTROSCOPY OF MOLECULAR HYDROGEN AND THE SEARCH FOR NEW PHYSICS (invited)
International Symposium on Molecular Spectroscopy
Champaign-Urbana, USA, 22 June 2017
Precision Spectroscopy of Molecular Hydrogen; Physics Beyond the Standard Model and the variation of fundamental constants
Lecture series at School: Search for new physics with low-energy precision tests
Ameland, Netherlands, 9-16 June 2017
Search for a drifting proton-electron mass ratio from molecular H2
The Hydride Toolbox
Paris, France, 12-15 December 2016
Search for Varying Constants and New Physics from molecular hydrogen
Varying Constants and Fundamental Cosmology - VARCOSMOFUN' 16
Szczecin, Poland, 12-17 September 2016
Physics beyond the Standard Model from molecular hydrogen
23rd International Conference on Spectral Line Shapes
Torun, Poland, 19-24 June 2016
Physics beyond the Standard Model from molecular hydrogen
PSAS 2016; International Conference on Precision Physics of Simple Atomic Systems
Jerusalem, Israel, 23 May 2016
Spectroscopy of molecular hydrogen in the laboratory and at high red-shift to search for varying constants
Colloquium Karlsruhe Institute of Technology
Karlsruhe, Germany, 11 May 2016
Search for a variation of fundamental constants from astronomical observations
Colloquium ASTRON, Netherlands Institute for Radio Astronomy
Dwingeloo, Netherlands, 10 Mar. 2016
Precision spectroscopy of molecular hydrogen
ICTP Winterschool on Optics 2016
Trieste, Italy, 25 Feb. 2016
Extreem ultraviolet licht voor steeds kleinere chips
Viva Fysica ! 2016
Amsterdam, Netherlands, 29 Jan. 2016
Molecules in the early Universe and the nature of physical law
FOM @ Veldhoven Meeting 2016
Veldhoven, Netherlands, 20 Jan. 2016
Search for new physics from astronomical observation of molecules
ISSI/HISPAC Workshop on High Performance Clocks
Bern, Switzerland, 4 Dec. 2015
Precision spectroscopy on molecular hydrogen
Spectroscopy seminar, Department of Chemistry ETH Zurich
Zurich, Switzerland, 4 Dec. 2015
Physics beyond the Standard Model from Molecules
Symposium The Sound of Science, Twente University
Enschede, Netherlands, 19 Nov. 2015
Physics beyond the Standard Model from Molecules
Colloquium Max Planck Institute fuer Quantenoptik
Munchen, Germany, 3 Nov. 2015
Precision measurements on H2 in search for new physics
International Conference on Precision Physics and Fundamental Constants
Budapest, Hungary, 12-16 Oct. 2015
Physics beyond the Standard Model from Molecules (invited)
HRMS 2015 Dijon
Dijon, France, 24-28 Aug. 2015
Physics beyond the Standard Model from Molecular hydrogen (invited)
33rd International Symposium on Free Radicals
Lake Tahoe, USA, 2-7 Aug. 2015
Physics beyond the Standard Model from Molecular hydrogen spectroscopy
Invited: Journal of Molecular Spectroscopy Lecture 2015
International Symposium on Molecular Spectroscopy
Champaign-Urbana, USA, 22-16 June 2015
Light from the early Universe and the nature of physical law
Fysica 2015
Focus session: Light - International Year of Light 2015
Eindhoven, Netherlands, 10 April 2015
Research at the Advanced Research Center for Nanolithography
27th NNV symposium on Plasma Physics (Program)
Lunteren, Netherlands, 11 March 2015
Molecular hydrogen in the photosphere of white dwarfs
Photodissociation in Astrochemistry
Leiden Observatory Workshop
Leiden, Netherlands, 3-5 February 2015
Light from the early Universe and the nature of physical law
Light and Atoms; Celebration of the international Year of Light (invited)
INRIM Italian Metrology Institute, Torino
Torino, Italy, 27 Jan. 2015
Zijn de Natuurconstanten constant ?
Natuurkundig Gezelschap Utrecht
Utrecht, Netherlands, 2 Dec. 2014
The Quest for a varying proton-electron mass ratio
ESO workshop: Cosmology and the Early Universe
Munich, Germany, 19 Sept. 2014
Testing Fundamental Physics from Spectra of simple Molecules
Faculty Colloquium FEW VU
Amsterdam, Netherlands, 4 Sept. 2014
Precision Measurements on Molecules for Tests of Fundamental Physics
EGAS (invited)
Lille, France, 1 July 2014
High Resolution Molecular spectroscopy of H2 at 10% the age of the Universe
International Symposium on Molecular Spectroscopy
Champaign-Urbana, USA, 19 June 2014
Search for a variation of the proton-electron mass ratio from methanol observations
International Symposium on Molecular Spectroscopy
Champaign-Urbana, USA, 19 June 2014
Search for drifting constants from extragalactic methanol
Cosmology and Astronomy; Templeton Foundation
Chicago, USA, 18 June 2014
Physics Beyond the Standard Model from Molecules
Colloquium NIKHEF
Amsterdam, Netherlands, 13 June 2014
Physics Beyond the Standard Model; exploring the constancy of physical law, forces beyond the Standard Model and the dimensionality of space-time from molecular spectroscopy
Symposium Institute of Molecules and Materials, Radboud University (invited)
Nijmegen, Netherlands, 19 May 2014
Zijn Natuurconstanten Constant ?
Diligentialezing
Den Haag, 16 Dec. 2013
Search for drifting constants and fifth forces
from precision measurements on molecules
31st SPP Physics Congres Philipines 2013 (invited)
Cebu, Philipines, 23 Oct. 2013
The H2 molecule; test of QED and varying constants
Frontiers in Optics 2013; Laser Science XXIX, APS/DLS 29th annual meeting
Orlando, Florida, 7 Oct. 2013
A stringent limit on a varying proton-electron mass ratio from alcohol in the early Universe
Dutch Astrochemistry Network
Leiden, Netherlands, 20 Sept. 2013
Search for new Physics from precision measurements on the hydrogen molecule
Leopoldina Symposium (invited)
Zurich, Switzerland, 12 Sept. 2013
Search for variation of fundamental constants on a cosmological time scale
Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas - ASOS 11 (invited)
Mons, Belgium, 7 Aug. 2013
Frequency comparisons with molecular clocks; serach for fifth forces and varying constants
Royal Society Workshop Chicheley Hall
Buckinghamshire, England, 25 July 2013
Probing varying constants and fifth forces from molecular hydrogen
Colloquium University of Science and Technology China
Hefei, China, 16 July 2013
Novel Techniques in VUV high resolution Spectroscopy
38th Conference on Vacuum Ultraviolet and X-ray physics (VUVX2013) (invited)
Hefei, China, 15 July 2013
Probing varying constants and fifth forces from molecular hydrogen
Seminar TU Eindhoven
Eindhoven, Netherlands, 25 June 2013
Structure determination of non-linear hydrocarbon chains by deuterium labeling
International Symposium on Molecular Spectroscopy
Columbus, Ohio, 19 June 2013
The 4050 A group of the A-X transition system of C3
International Symposium on Molecular Spectroscopy
Columbus, Ohio, 19 June 2013
Search for a variation of fundamental constants
International Symposium on Molecular Spectroscopy (invited)
Columbus, Ohio, 19 June 2013
Search for a variation of fundamental constants on a cosmological time scale
Colloquium University of Heidelberg
Heidelberg, Germany, 29 May 2013
H2 as a possible carrier of the DIBs ?
The Diffuse Interstellar bands, IAU Symposium 297
Noordwijkerhout, Netherlands, 23 May 2013
Search for a variation of fundamental constants via optical and redio astronomy
Seminar, Leiden University, Astronomy Department
Leiden, Netherlands, 13 Feb. 2013
Laboratory spectroscopy and astronomical observations in search for a drifting proton-electron mass ratio
Seminar, Radboud University Nijmegen
Nijmegen, Netherlands, 23 Nov. 2012
Search for a variation of fundamental constants
Innsbruck Physics Lecture 2012 (invited)
Innsbruck, Austria, 13 Nov. 2012
Laboratory spectroscopy and astronomical observations in search for a drifting proton-electron mass ratio
Colloquium, Universitat Koln
Koln, Germany, 22 Oct. 2012
Search for drifting constants in a dynamical Universe
Enrico Fermi Colloquium, LENS, Florence
Florence, Italy, 19 Oct. 2012
Search for drifting constants via extra-galactic alcohol
New Frontiers in Cosmology and Astronomy, Templeton Foundation
Philidelphia, USA, 12 Oct. 2012
Precision spectroscopy H2; Test of QED and varying constants
6thInternational workshop on Fundamental Physics using atoms (invited)
Sendai, Japan, 29 Sept. 2012
Precision spectroscopy of He and H2
Seminar National institute for Communications Technology
Tokyo, Japan, 27 Sept. 2012
Search for variation of fundamental constants on a cosmological time scale
Colloquium AMOLF
Amsterdam, Netherlands, 24 Sept. 2012
The smallest neutral molecule, H2, as a benchmark system in spectroscopy
Physique Atomique et Moleculaire et Optique (invited)
Metz, France, 7 July 2012
Search for variation of fundamental constants on a cosmological time scale
Marcel Grossmann meeting on General relativity (MG3)
Stockholm, Sweden, 3 July 2012
Precision measurements of H2 and search of a varying proton-electron mass ratio
International Conference on Precision Physics of Simple Atomic Systems (invited)
Eltville, Germany, 11 June 2012
Heavy Rydberg states
ITAMP workshop on Ion-Pair states, Harvard University (invited)
Cambridge, USA, 11 May 2012
Varying Fundamental constants
Diavolezza Snow and Ski meeting
Diavolezza, Switzerland, 16 Feb. 2012
Verandering van de Fundamentele Natuurconstanten ?
Viva Fysica, Universiteit van Amsterdam
Amsterdam, Netherlands, 27 Jan. 2012
The Quest for drifting constants
FOM @ Veldhoven (invited)
Veldhoven, Netherlands, 19 Jan. 2012
Gas-phase molecules at high redshift
NWO Astrochemistry meeting
Nijmegen, Netherlands, 27 Sept. 2011
On the Physics of Fundamental Symmetries and Fundamental Constants of Nature
Chair and organizer: Symposium and Kick-off meeting Broken Mirrors and Drifting Constants
Amsterdam, Netherlands, 6 June 2011
New quasar observations and laboratory measurements withmasers and lasers
COST-IOTA-ESF meeting "Ion-trappers" network
Heidelberg, Germany, 23 Mar. 2011
Spectroscopic techniques for the extreme ultraviolet
Colloquium CFEL
Hamburg, Germany, 8 Mar. 2011
Spectroscopic techniques for the extreme ultraviolet
Colloquium CFEL
Hamburg, Germany, 8 Mar. 2011
The Spectrum of molecular hydrogen and a possible variation of the proton-electron mass ratio
SOLEIL workshop
Paris, France, 23 Nov. 2010
Precision spectroscopy and our view on the Universe
Special meeting for the retirement of Prof. Hans ter Meulen
Nijmegen, Netherlands, 29 Oct. 2010
On the variation of the proton-electron mass ratio
Joint European and National Astronomy meeting 2010
Lisbon, Portugal, 7 Sept. 2010
Further constraints on the proton-electron mass ratio
Variation of Constants and Violation of Symmetries workshop
Cairns, Australia, 24-25 July 2010
Coherent Extreme Ultraviolet Radiation and some applications
Colloquium RWTH Aachen
Aachen, Germany, 29 April 2010
Molecular hydrogen in the lab and in the early Universe; search for varying mu
Deutsche Physikalische Gesellschaft (invited)
Hannover, Germany, 8 Mar. 2010
The spectrum of H2 and HD and the quest for a varying proton-electron mass ratio
ISA user meeting (invited)
Aarhus, Denmark, 29 Jan. 2010
Laboratory metrology and astronomical observations for probing variation of fundamental constants
Quest@PTB
Braunschweig, Germany, 16 Sept. 2009
In search for mu-variation; Laboratory spectroscopy and astronomical observations of molecular hydrogen
Perimeter Institute (invited)
Waterloo, Canada, 15 July 2008
H2 as a probe for varying mu
Lorentz Centre Workshop
Leiden, Netherlands, 20 May 2009
Hybrid mode-locking of quentum dot laser diodes at 1.5 micron
Meeting Memphis consortium
Utrecht, Netherlands, 20 March 2009
In search of a variation of fundamental constants
Zernike Colloquium, University Groningen
Groningen, Netherlands, 25 Sept. 2008
Techniques of XUV precision spectroscopy
EFTF '08 (invited)
Toulouse, France, 25 April 2008
On a possible variation of the proton-electron mass ratio
ITAMP workshop Harvard University
Cambridge, USA, 31 March 2008
On a possible variation of the proton-electron mass ratio
Colloquium TU Eindhoven
Eindhoven, Netherlands, 20 March 2008
Natuurconstanten altijd constant ?
PAC Symposium Vrije Universiteit
Amsterdam, Netherlands, 6 March 2008
On a possible variation of the proton-electron mass ratio
FOM @ Veldhoven
Veldhoven, Netherlands, 22 Jan. 2008
On a possible variation of the proton-electron mass ratio
Colloquium Universitat Bonn
Bonn, Germany, 11 Jan. 2008
