Wim Ubachs

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Kjeld S. E. EikemaVU University Amsterdam, LaserLaB, De Boelelaan 1081, 1081 HV Amsterdam, The NetherlandsVerified email at vu.nl
Edcel John SalumbidesLaserLaB VU University AmsterdamVerified email at vu.nl
Hendrick BethlemAssociate professor of Physics, Vrije Universiteit AmsterdamVerified email at vu.nl
Michael MurphyProfessor of Astrophysics, Swinburne University of TechnologyVerified email at swin.edu.au
Stefan WitteAssociate professor at Vrije Universiteit Amsterdam, group leader at ARCNLVerified email at vu.nl
Oscar O. VersolatoGroup leader and Head of Department, Advanced Research Center for Nanolithography (ARCNL)Verified email at arcnl.nl
Ronnie HoekstraZernike Institute for Advanced Materials, University of GroningenVerified email at rug.nl
Mingli NiuVrije Universiteit AmsterdamVerified email at vu.nl
Jeroen KoelemeijAssistant Professor at VU University AmsterdamVerified email at vu.nl
Francesco TorrettiPhD student, Advanced Research Center for NanolithographyVerified email at arcnl.nl
Paul JansenPostDoc, Laboratory of Physical Chemistry, ETH ZurichVerified email at phys.chem.ethz.ch
Brandi FernandoIstututo Nazionale di Ottica - CNRVerified email at ino.it
Laurent NAHONbeamline group leader, Synchrotron SOLEILVerified email at synchrotron-soleil.fr
Wim VassenLecturer Physics, VU University, Amsterdam, NetherlandsVerified email at vu.nl
Stephen GibsonAustralian National UniversityVerified email at anu.edu.au
Steven StolteEmeriritus Professor of atomic and molecular Physics Vrije Universiteit AmsterdamVerified email at VU.nl
Lorenz WillmannVan Swinderen Institute, University of GroningenVerified email at rug.nl
Ziyu GuVU University AmsterdamVerified email at vu.nl
A. BorschevskyThe van Swinderen Institute, University of GroningenVerified email at rug.nl
Tjeerd J. PinkertnoneVerified email at alumnus.utwente.nl

Wim Ubachs

Professor of Physics, VU University, Amsterdam, Netherlands

Verified email at vu.nl - Homepage

Physics lasers spectroscopy astrophysics chemistry


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Indication of a cosmological variation of the proton-electron mass ratio based on laboratory measurement and reanalysis of H 2 spectra E Reinhold, R Buning, U Hollenstein, A Ivanchik, P Petitjean, W Ubachs Physical Review Letters 96 (15), 151101, 2006	364	2006
Direct measurement of the Rayleigh scattering cross section in various gases M Sneep, W Ubachs Journal of Quantitative Spectroscopy and Radiative Transfer 92 (3), 293-310, 2005	335	2005
Lamb shift measurement in the 1 t 1 S ground state of helium KSE Eikema, W Ubachs, W Vassen, W Hogervorst Physical Review A 55 (3), 1866, 1997	214	1997
Determination of the ionization and dissociation energies of the hydrogen molecule J Liu, EJ Salumbides, U Hollenstein, JCJ Koelemeij, KSE Eikema, ... The Journal of chemical physics 130 (17), 174306, 2009	211	2009
A source of 2 terawatt, 2.7 cycle laser pulses based on noncollinear optical parametric chirped pulse amplification S Witte, RT Zinkstok, AL Wolf, W Hogervorst, W Ubachs, KSE Eikema Optics Express 14 (18), 8168-8177, 2006	201	2006
Extreme ultraviolet frequency comb metrology DZ Kandula, C Gohle, TJ Pinkert, W Ubachs, KSE Eikema Physical Review Letters 105 (6), 063001, 2010	177	2010
Deep-ultraviolet quantum interference metrology with ultrashort laser pulses S Witte, RT Zinkstok, W Ubachs, W Hogervorst, KSE Eikema Science 307 (5708), 400-403, 2005	170	2005
A stringent limit on a drifting proton-to-electron mass ratio from alcohol in the early universe J Bagdonaite, P Jansen, C Henkel, HL Bethlem, KM Menten, W Ubachs Science 339 (6115), 46-48, 2013	163	2013
Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD+ J Biesheuvel, JP Karr, L Hilico, KSE Eikema, W Ubachs, JCJ Koelemeij Nature communications 7 (1), 1-7, 2016	161	2016
Fundamental vibration of molecular hydrogen GD Dickenson, ML Niu, EJ Salumbides, J Komasa, KSE Eikema, ... Physical review letters 110 (19), 193601, 2013	159	2013
Bounds on fifth forces from precision measurements on molecules EJ Salumbides, JCJ Koelemeij, J Komasa, K Pachucki, KSE Eikema, ... Physical Review D 87 (11), 112008, 2013	150	2013
Experimental verification of Rayleigh scattering cross sections H Naus, W Ubachs Optics Letters 25 (5), 347-349, 2000	133	2000
Efficient temporal compression of coherent nanosecond pulses in a compact SBS generator-amplifier setup S Schiemann, W Ubachs, W Hogervorst IEEE Journal of quantum electronics 33 (3), 358-366, 1997	133	1997
Keck telescope constraint on cosmological variation of the proton-to-electron mass ratio AL Malec, R Buning, MT Murphy, N Milutinovic, SL Ellison, JX Prochaska, ... Monthly Notices of the Royal Astronomical Society 403 (3), 1541-1555, 2010	131	2010
A high-velocity narrow absorption line outflow in the quasar J212329. 46− 005052.9 F Hamann, N Kanekar, JX Prochaska, MT Murphy, S Ellison, AL Malec, ... Monthly Notices of the Royal Astronomical Society 410 (3), 1957-1974, 2011	129	2011
Precision VUV spectroscopy of Ar I at 105 nm I Velchev, W Hogervorst, W Ubachs Journal of Physics B: Atomic, Molecular and Optical Physics 32 (17), L511, 1999	127	1999
Determination of the ionization and dissociation energies of the deuterium molecule J Liu, D Sprecher, C Jungen, W Ubachs, F Merkt The journal of chemical physics 132 (15), 154301, 2010	106	2010
On a possible variation of the proton-to-electron mass ratio: H2 spectra in the line of sight of high-redshift quasars and in the laboratory W Ubachs, R Buning, KSE Eikema, E Reinhold Journal of molecular spectroscopy 241 (2), 155-179, 2007	103	2007
Methanol as a sensitive probe for spatial and temporal variations of the proton-to-electron mass ratio P Jansen, LH Xu, I Kleiner, W Ubachs, HL Bethlem Physical Review Letters 106 (10), 100801, 2011	102	2011
Prospects for precision measurements on ammonia molecules in a fountain HL Bethlem, M Kajita, B Sartakov, G Meijer, W Ubachs The European Physical Journal Special Topics 163 (1), 55-69, 2008	100	2008

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