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  • W.M.G. Ubachs
2018

Active Two-Dimensional Steering of Radiation from a Nanoaperture

Dreissen, L. S., Schouten, H. F., Ubachs, W., Raghunathan, S. B. & Visser, T. D., 14 Nov 2018, In : Nano Letters. 18, 11, p. 7207-7210 4 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Cavitation-induced expansion dynamics of tin microdroplet target in EUV light sources

Kurilovich, D., Pinto, T., Schupp, R., Torretti, F., Scheers, J., Stodolna, A., Eikema, K. S., Witte, S., Ubachs, W., Hoekstra, R. & Versolato, O. O., Mar 2018, Compact EUV and X-ray Light Sources, EUVXRAY 2018. OSA - The Optical Society, Vol. Part F85-EUVXRAY 2018.

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Deep-Ultraviolet Frequency Metrology of H2 for Tests of Molecular Quantum Theory

Altmann, R. K., Dreissen, L. S., Salumbides, E. J., Ubachs, W. & Eikema, K. S. E., 25 Jan 2018, In : Physical Review Letters. 120, 4, 043204.

Research output: Contribution to JournalArticleAcademicpeer-review

Dissociation Energy of the Hydrogen Molecule at 10-9 Accuracy

Cheng, C. F., Hussels, J., Niu, M., Bethlem, H. L., Eikema, K. S. E., Salumbides, E. J., Ubachs, W., Beyer, M., Hölsch, N., Agner, J. A., Merkt, F., Tao, L. G., Hu, S. M. & Jungen, C., 6 Jul 2018, In : Physical Review Letters. 121, 1, p. 1-5 5 p., 013001.

Research output: Contribution to JournalArticleAcademicpeer-review

Energy-level structure of Sn3+ ions

Scheers, J., Ryabtsev, A., Borschevsky, A., Berengut, J. C., Haris, K., Schupp, R., Kurilovich, D., Torretti, F., Bayerle, A., Eliav, E., Ubachs, W., Versolato, O. O. & Hoekstra, R., 4 Dec 2018, In : Physical Review A. 98, 6, p. 1-12 12 p., 062503.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Expansion Dynamics after Laser-Induced Cavitation in Liquid Tin Microdroplets

Kurilovich, D., Pinto, T. D. F., Torretti, F., Schupp, R., Scheers, J., Stodolna, A. S., Gelderblom, H., Eikema, K. S. E., Witte, S., Ubachs, W., Hoekstra, R. & Versolato, O. O., 2 Nov 2018, In : Physical Review Applied. 10, 5, p. 1-8 8 p., 054005.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level

Biesheuvel, J., Karr, J. P., Hilico, L., Eikema, K. S. E., Ubachs, W. & Koelemeij, J. C. J., Jan 2018, Exploring the World with the Laser: Dedicated to Theodor Hänsch on his 75th Birthday. Cham: Springer International Publishing Switzerland, p. 267-307 41 p.

Research output: Chapter in Book / Report / Conference proceedingChapterAcademicpeer-review

Open Access

Measuring the electric dipole moment of the electron in BaF

Aggarwal, P., Bethlem, H. L., Borschevsky, A., Denis, M., Esajas, K., Haase, P. A. B., Hao, Y., Hoekstra, S., Jungmann, K., Meijknecht, T. B., Mooij, M. C., Timmermans, R. G. E., Ubachs, W., Willmann, L. & Zapara, A., 20 Nov 2018, In : European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics. 72, 11, 197.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Physics of laser-produced plasma sources of extreme ultraviolet radiation

Versolato, O. O., Kurilovich, D., Torretti, F., Schupp, R., Scheers, J., Deuzeman, M. J., Bayerle, A., Hoekstra, R. & Ubachs, W., 1 Jan 2018, Compact EUV and X-ray Light Sources, EUVXRAY 2018. OSA - The Optical Society, Vol. Part F85-EUVXRAY 2018.

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Power-law scaling of plasma pressure on laser-ablated tin microdroplets

Kurilovich, D., Basko, M. M., Kim, D. A., Torretti, F., Schupp, R., Visschers, J. C., Scheers, J., Hoekstra, R., Ubachs, W. & Versolato, O. O., 19 Jan 2018, In : Physics of Plasmas. 25, 1, p. 012709 10 p., 012709.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Precision measurements and test of molecular theory in highly excited vibrational states of H2 (Ν = 11)

Trivikram, T. M., Niu, M. L., Wcisło, P., Ubachs, W. & Salumbides, E. J., Jan 2018, Exploring the World with the Laser: Dedicated to Theodor Hänsch on his 75th Birthday. Cham: Springer International Publishing Switzerland, p. 679-700 22 p.

Research output: Chapter in Book / Report / Conference proceedingChapterAcademicpeer-review

Open Access

Rayleigh–Brillouin light scattering spectroscopy of nitrous oxide (N2O)

Wang, Y., Liang, K., van de Water, W., Marques, W. & Ubachs, W., Feb 2018, In : Journal of Quantitative Spectroscopy and Radiative Transfer. 206, p. 63-69 7 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Relativistic and QED Effects in the Fundamental Vibration of T2

Madhu Trivikram, T., Schlösser, M., Ubachs, W. & Salumbides, E. J., 16 Apr 2018, In : Physical Review Letters. 120, 16, p. 1-5 5 p., 163002.

Research output: Contribution to JournalArticleAcademicpeer-review

Search for Varying Constants of Nature from Astronomical Observation of Molecules

Ubachs, W., Feb 2018, In : Space Science Reviews. 214, 1, p. 1-15 15 p., 3.

Research output: Contribution to JournalReview articleAcademicpeer-review

Open Access

Short-wavelength out-of-band EUV emission from Sn laser-produced plasma

Torretti, F., Schupp, R., Kurilovich, D., Bayerle, A., Scheers, J., Ubachs, W., Hoekstra, R. & Versolato, O., 25 Jan 2018, In : Journal of Physics B: Atomic and Molecular Physics. 51, 045005, 045005.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Sn ion energy distributions of ns- A nd ps-laser produced plasmas

Bayerle, A., Deuzeman, M. J., Van Der Heijden, S., Kurilovich, D., De Faria Pinto, T. D., Stodolna, A., Witte, S., Eikema, K. S. E., Ubachs, W., Hoekstra, R. & Versolato, O. O., 4 Apr 2018, In : Plasma sources science & technology. 27, 4, p. 1-9 8 p., 045001.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Sub-Doppler Frequency Metrology in HD for Tests of Fundamental Physics

Cozijn, F. M. J., Dupré, P., Salumbides, E. J., Eikema, K. S. E. & Ubachs, W., 13 Apr 2018, In : Physical Review Letters. 120, 15, p. 1-5 5 p., 153002.

Research output: Contribution to JournalArticleAcademicpeer-review

2017

Analysis of carbon monoxide absorption at zabs ≃ 2.5 to constrain variation of the proton-to-electron mass ratio

Dapra, M., Noterdaeme, P., Vonk, M., Murphy, M. T. & Ubachs, W., 7 Feb 2017, In : Monthly Notices of the Royal Astronomical Society. 467, 4, p. 3848-3855 8 p.

Research output: Contribution to JournalArticleAcademicpeer-review

C-60(+) and the Diffuse Interstellar Bands: An Independent Laboratory Check

Spieler, S., Kuhn, M., Postler, J., Simpson, M., Wester, R., Scheier, P., Ubachs, W., Bacalla, X., Bouwman, J. & Linnartz, H., 10 Sep 2017, In : Astrophysical Journal. 846, 2, 168.

Research output: Contribution to JournalArticleAcademicpeer-review

CARS spectroscopy of the (v=0→1) band in T2

Schlösser, M., Zhao, X., Trivikram, M., Ubachs, W. & Salumbides, E. J., Sep 2017, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 50, 21, 214004.

Research output: Contribution to JournalArticleAcademicpeer-review

Constraint on a varying proton-to-electron mass ratio from H2 and HD absorption at zabs ≃ 2.34

Daprà, M., Laan, M., Murphy, M. T. & Ubachs, W., 2017, In : Monthly Notices of the Royal Astronomical Society. 465, 4, p. 4057-4073 17 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Discovery of a Perseus-like cloud in the early Universe: H I-to-H 2 transition, carbon monoxide and small dust grains at z abs ≈ 2.53 towards the quasar J0000+0048

Noterdaeme, P., Krogager, J. K., Balashev, S., Ge, J., Gupta, N., Krühler, T., Ledoux, C., Murphy, M. T., Pâris, I., Petitjean, P., Rahmani, H., Srianand, R. & Ubachs, W., 1 Jan 2017, In : Astronomy and Astrophysics. 597, A82.

Research output: Contribution to JournalArticleAcademicpeer-review

Experimental and theoretical studies of the nps 1Su+ and nppi 1Pu+ (n >= 4, N'=1-6) states of D2: energies, natural widths, absorption line intensities, and dynamics

Glass-Maujean, M., Jungen, C., Vasserot, A. M., Schmoranzer, H., Knie, A., Kübler, S., Ehresmann, A. & Ubachs, W., 23 May 2017, In : Journal of Molecular Spectroscopy. 338, p. 22-71 50 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Fourier-transform spectroscopy of 13C17O and deperturbation analysis of the A1Π (υ=0–3) levels

Hakalla, R., Niu, M. L., Field, R. W., Heays, A. N., Salumbides, E. J., Stark, G., Lyons, J. R., Eidelsberg, M., Lemaire, J. L., Federman, S. R., de Oliveira, N. & Ubachs, W., 1 Mar 2017, In : Journal of Quantitative Spectroscopy and Radiative Transfer. 189, p. 312-328 17 p.

Research output: Contribution to JournalArticleAcademicpeer-review

High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level

Biesheuvel, J., Karr, J. P., Hilico, L., Eikema, K. S. E., Ubachs, W. & Koelemeij, J. C. J., 1 Jan 2017, In : Applied Physics B. Lasers and Optics. 123, 1, 23.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Ion distribution and ablation depth measurements of a fs-ps laser-irradiated solid tin target

Deuzeman, M. J., Stodolna, A. S., Leerssen, E. E. B., Antoncecchi, A., Spook, N., Kleijntjens, T., Versluis, J., Witte, S., Eikema, K. S. E., Ubachs, W., Hoekstra, R. & Versolato, O. O., 14 Mar 2017, In : Journal of Applied Physics. 121, 10, 103301.

Research output: Contribution to JournalArticleAcademicpeer-review

Optical spectroscopy of complex open 4d-shell ions Sn7+ - Sn10+

Torretti, F., Windberger, R. A. W., Ryabtsev, A., Dobrodey, S., Bekker, H., Ubachs, W., Hoekstra, R., Kahl, E. V., Berengut, J. C., Crespo López-Urrutia, J. R. & Versolato, O., 10 Apr 2017, In : Physical Review A. 95, 4, 042503.

Research output: Contribution to JournalArticleAcademicpeer-review

Perturbations in the A1Π, v = 0 state of 12C18O investigated via complementary spectroscopic techniques

Trivikram, M., Hakalla, R., Heays, A. N., Niu, M., Scheidegger, S., Salumbides, E. J., de Oliveira, N., Field, R. W. & Ubachs, W., 4 Aug 2017, In : Molecular Physics. 115, 24, p. 3178-3191 14 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Probing the Gravitational Dependence of the Fine-Structure Constant from Observations of White Dwarf Stars

Bainbridge, M. B., Barstow, M. A., Reindl, N., Tchang-Brillet, W. -U. L., Ayres, T. R., Webb, J. K., Barrow, J. D., Hu, J., Holberg, J. B., Preval, S. P., Ubachs, W., Dzuba, V. A., Flambaum, V. V., Dumont, V. & Berengut, J. C., Jun 2017, In : UNIVERSE. 3, 2, 32.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Rayleigh-Brillouin scattering in SF6 in the kinetic regime

Wang, Y., Yu, Y., Liang, K., Marques, W., van de Water, W. & Ubachs, W., 1 Feb 2017, In : Chemical Physics Letters. 669, p. 137-142 6 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Testing the variability of the proton-to-electron mass ratio from observations of methanol in the dark cloud core L1498

Dapra, M., Henkel, C., Levshakov, S. A., Menten, K. M., Muller, S., Bethlem, H. L., Leurini, S., Lapinov, A. V. & Ubachs, W., Dec 2017, In : Monthly Notices of the Royal Astronomical Society. 472, 4, p. 4434-4443 10 p.

Research output: Contribution to JournalArticleAcademicpeer-review

2016

Analysis of the fine structure of Sn11+-Sn14+ ions by optical spectroscopy in an electron-beam ion trap

Windberger, A., Torretti, F., Borschevsky, A., Ryabtsev, A., Dobrodey, S., Bekker, H., Eliav, E., Kaldor, U., Ubachs, W. M. G., Hoekstra, R., Lopez-Urrutia, J. R. C. & Versolato, O. O., 2016, In : Physical Review A. 94, 1, 012506.

Research output: Contribution to JournalArticleAcademicpeer-review

A testing time for antimatter

Ubachs, W., 4 Nov 2016, In : Science. 354, 6312, p. 546-547 2 p.

Research output: Contribution to JournalShort surveyAcademicpeer-review

Colloquium: Search for a drifting proton-electron mass ratio from H-2

Ubachs, W. M. G., Bagdonaite, J., Salumbides, E. J., Murphy, M. T. & Kaper, L., 2016, In : Reviews of Modern Physics. 88, 2, 021003.

Research output: Contribution to JournalArticleAcademicpeer-review

constraint on a cosmological variation in the proton-to-electron mass ratio from electronic co absorption

Dapra, M., Niu, M., Salumbides, E. J., Murphy, M. T. & Ubachs, W. M. G., 2016, In : Astrophysical Journal. 826, 2, 192.

Research output: Contribution to JournalArticleAcademicpeer-review

Molecular Fountain

Cheng, C., van der Poel, A. P. P., Jansen, P., Quintero Perez, M., Wall, T. E., Ubachs, W. M. G. & Bethlem, H. L., 2016, In : Physical Review Letters. 117, 25, 5 p., 253201.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File

Physics beyond the Standard Model from hydrogen spectroscopy

Ubachs, W. M. G., Koelemeij, J. C. J., Eikema, K. S. E. & Salumbides, E. J., 2016, In : Journal of Molecular Spectroscopy. 320, p. 1-12

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Plasma Propulsion of a Metallic Microdroplet and its Deformation upon Laser Impact

Kurilovich, D., Klein, A. L., Torretti, F., Lassise, A., Hoekstra, R., Ubachs, W. M. G., Gelderblom, H. & Versolato, O., 2016, In : Physical Review Applied. 6, 1, 014018.

Research output: Contribution to JournalArticleAcademicpeer-review

Precision measurements and test of molecular theory in highly excited vibrational states of H2 (v = 11)

Trivikram, T. M., Niu, M. L., Wcisło, P., Ubachs, W. & Salumbides, E. J., 1 Dec 2016, In : Applied Physics B. Lasers and Optics. 122, 12, 294.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD

Biesheuvel, J., Karr, J-P., Hilico, L., Eikema, K. S. E., Ubachs, W. M. G. & Koelemeij, J. C. J., 2016, In : Nature Communications. 7, 10385.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Spectroscopic Survey of Electronic Transitions of C6H, (C6H)-C-13, and C6D

Bacalla, X. L., Salumbides, E. J., Linnartz, H. V. J., Ubachs, W. M. G. & Zhao, D., 2016, In : Journal of Physical Chemistry A. 120, 32, p. 6402-6417

Research output: Contribution to JournalArticleAcademicpeer-review

Spectroscopy and perturbation analysis of the A1π (v=0) state of 13 C16 O

Niu, M. L., Hakalla, R., Trivikram, T. M., Heays, A. N., de Oliveira, N., Salumbides, E. J. & Ubachs, W., 1 Oct 2016, In : Molecular Physics. 114, 19, p. 2857-2867 11 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Spectroscopy and perturbation analysis of the CO A(1)pi -X-1 sigma(+) (2,0), (3,0) and (4,0) bands

Niu, M., Salumbides, E. J., Heays, A. N., de Oliveira, N., Field, R. W. & Ubachs, W. M. G., 2016, In : Molecular Physics. 114, 5, p. 627-636

Research output: Contribution to JournalArticleAcademicpeer-review

The excited J=0 (1)Sigma(+)(u) levels of D-2: Measurements and ab initio quantum defect study

Glass-Maujean, M., Jungen, C., Dickenson, G. D., de Oliveira, N. & Ubachs, W. M. G., 2016, In : Journal of Molecular Spectroscopy. 320, p. 33-38

Research output: Contribution to JournalArticleAcademicpeer-review

The Measurement of Tropospheric Temperature Profiles using Rayleigh-Brillouin Scattering: Results from Laboratory and Atmospheric Studies

Witschas, B., Reitebuch, O., Lemmerz, C., Kableka, P. G., Kondratyev, S., Gu, Z. & Ubachs, W., 7 Jun 2016, In : EPJ Web of Conferences. 119, 27004.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

VIS and VUV spectroscopy of (CO)-C-12-O-17 and deperturbation analysis of the A(1)II, nu=1-5 levels

Hakalla, R., Niu, M., Field, R. W., Salumbides, E. J., Heays, A. N., Stark, G., Lyons, J. R., Eidelsberg, M., Lemaire, J. L., Federman, S., Zachwieja, M., Szajna, W., Kolek, P., Piotrowska, I., Ostrowska-Kopec, M., Kepa, R., de Oliveira, N. & Ubachs, W. M. G., 2016, In : RSC Advances. 6, 38, p. 31588-31606

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
2015

Communication: Test of quantum chemistry in vibrationally hot hydrogen molecules

Niu, M., Salumbides, E. J. & Ubachs, W. M. G., 2015, In : Journal of Chemical Physics. 143, 8, p. 081102 081102.

Research output: Contribution to JournalArticleAcademicpeer-review

Constraint on a Varying Proton-Electron Mass Ratio 1.5 Billion Years after the Big Bang

Bagdonaite, J., Ubachs, W. M. G., Murphy, M. T. & Withmore, J. B., 2015, In : Physical Review Letters. 114, 7, p. 071301 071301.

Research output: Contribution to JournalArticleAcademicpeer-review

Constraints on changes in the proton-electron mass ratio using methanol lines

Kanekar, N., Ubachs, W. M. G., Menten, K. M., Bagdonaite, J., Brunthaler, A., Henkel, C., Muller, S., Bethlem, H. L. & Dapra, M., 2015, In : Monthly Notices of the Royal Astronomical Society: Letters. 448, 1, p. L104-L108

Research output: Contribution to JournalArticleAcademicpeer-review

Constraints on extra dimensions from precision molecular spectroscopy

Salumbides, E. J., Schellekens, A. N., Gato-Rivera, B. & Ubachs, W. M. G., 2015, In : New Journal of Physics. 17, p. 033015 033015.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access