Find Research Outputs

Search in all content

Filters for Research Output

Search concepts
Selected filters

Publication Year

  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011

Author

  • WMG Ubachs
Article

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

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

Dynamic beam steering from a sub-wavelength slit by selective excitation of guided modes

Raghunathan, S. B., Schouten, H., Ubachs, W. M. G., Kim, E., Gan, C. H. & Visser, T. D., 2013, In : Physical Review Letters. 111, 15, 153901.

Research output: Contribution to JournalArticleAcademicpeer-review

Effect of soil temperature on optical frequency transfer through unidirectional dense-wavelength-division-multiplexing fiber-optic links

Pinkert, T. J., Boll, O., Willmann, L., Jansen, G. S. M., Dijck, E. A., Groeneveld, B. G. H. M., Smets, R., Bosveld, F. C., Ubachs, W. M. G., Jungmann, K., Eikema, K. S. E. & Koelemeij, J. C. J., 2015, In : Applied Optics. 54, 4, p. 728-738

Research output: Contribution to JournalArticleAcademicpeer-review

Efficient Generation of Extreme Ultraviolet Light from Nd:YAG-Driven Microdroplet-Tin Plasma

Schupp, R., Torretti, F., Meijer, R. A., Bayraktar, M., Scheers, J., Kurilovich, D., Bayerle, A., Eikema, K. S. E., Witte, S., Ubachs, W., Hoekstra, R. & Versolato, O. O., 8 Jul 2019, In : Physical Review Applied. 12, 1, p. 1-11 11 p., 014010.

Research output: Contribution to JournalArticleAcademicpeer-review

Electronic spectra and structure of the non-linear carbon chain C9H3

Zhao, D., Wehres, N., Linnartz, H. V. J. & Ubachs, W. M. G., 2011, In : Chemical Physics Letters. 501, p. 232-237

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

EUV spectroscopy of highly charged Sn13+-Sn15+ ions in an electron-beam ion trap

Scheers, J., Scheers, J., Shah, C., Ryabtsev, A., Bekker, H., Torretti, F., Torretti, F., Sheil, J., Czapski, D. A., Berengut, J. C., Ubachs, W., Ubachs, W., López-Urrutia, J. R. C., Hoekstra, R., Hoekstra, R. & Versolato, O. O., Jun 2020, In : Physical Review A. 101, 6, p. 1-11 11 p., 062511.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

EUV spectroscopy of Sn5+ -Sn10+ ions in an electron beam ion trap and laser-produced plasmas

Bouza, Z., Scheers, J., Ryabtsev, A., Schupp, R., Behnke, L., Shah, C., Sheil, J., Bayraktar, M., López-Urrutia, J. R. C., Ubachs, W., Hoekstra, R. & Versolato, O. O., 14 Oct 2020, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 53, 19, p. 1-10 10 p., 195001.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Excitation of H2 at large internuclear separation: outer well states and continuum resonances

Trivikram, T. M., Salumbides, E. J., Jungen, C. & Ubachs, W., 2 Nov 2019, In : Molecular Physics. 117, 21, p. 2961-2971 11 p.

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

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

First Constraint on Cosmological Variation of the Proton-to-Electron Mass Ratio from Two Independent Telescopes

van Weerdenburg, F., Murphy, M. T., Malec, A. L., Kaper, L. & Ubachs, W. M. G., 2011, In : Physical Review Letters. 106, 18, p. 180802

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
142 Downloads (Pure)

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

Frequency comb generation by CW laser injection into a quantum-dot mode-locked laser

Pinkert, T. J., Salumbides, E. J., Tahvili, M. S., Ubachs, W. M. G., Bente, E. A. J. M. & Eikema, K. S. E., 2012, In : Optics Express. 20, 19, p. 21357-21371

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
147 Downloads (Pure)

Fundamental vibration of molecular hydrogen.

Dickenson, G. D., Niu, M., Salumbides, E. J., Komasa, J., Eikema, K. S. E., Pachucki, K. & Ubachs, W. M. G., 2013, In : Physical Review Letters. 110, 19, p. 193601

Research output: Contribution to JournalArticleAcademicpeer-review

Gas-Phase Electronic Absorption Spectra of Deuterated Linear Seven-Carbon Radicals

Haddad, M. A., Zhao, D. & Ubachs, W. M. G., 2015, In : Spectroscopy Letters. 48, 8, p. 567-571

Research output: Contribution to JournalArticleAcademicpeer-review

H 2 /HD molecular data for analysis of quasar spectra in search of varying constants

Ubachs, W., Salumbides, E. J., Murphy, M. T., Abgrall, H. & Roueff, E., Feb 2019, In : Astronomy and Astrophysics. 622, p. 1-4 4 p., A127.

Research output: Contribution to JournalArticleAcademicpeer-review

H2 as a possible carrier of the DIBs?

Ubachs, W., Feb 2014, In : Proceedings of the International Astronomical Union. 9, S297, p. 375-377 3 p.

Research output: Contribution to JournalArticleAcademicpeer-review

H-2 Lyman and Werner band lines and their sensitivity for a variation of the proton-electron mass ratio in the gravitational potential of white dwarfs

Salumbides, E. J., Bagdonaite, J., Abgrall, H., Roueff, E. & Ubachs, W. M. G., 2015, In : Monthly Notices of the Royal Astronomical Society. 450, 2, p. 1237-1245

Research output: Contribution to JournalArticleAcademicpeer-review

High accuracy theoretical investigations of CaF, SrF, and BaF and implications for laser-cooling

Hao, Y., Pašteka, L. F., Visscher, L., Aggarwal, P., Bethlem, H. L., Boeschoten, A., Borschevsky, A., Denis, M., Esajas, K., Hoekstra, S., Jungmann, K., Marshall, V. R., Meijknecht, T. B., Mooij, M. C., Timmermans, R. G. E., Touwen, A., Ubachs, W., Willmann, L., Yin, Y. & Zapara, A., 21 Jul 2019, In : Journal of Chemical Physics. 151, 3, p. 1-17 17 p., 034302.

Research output: Contribution to JournalArticleAcademicpeer-review

High precision frequency measurement of the 423 nm Ca I line

Salumbides, E. J., Maslinskas, V., Dildar, I. M., Wolf, A. L., van Duijn, E. J., Eikema, K. S. E. & Ubachs, W. M. G., 2011, In : Physical Review A. 83, p. 012502

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
131 Downloads (Pure)

High-precision laser spectroscopy of the CO A(1)Pi - X-1 Sigma(+) (2,0), (3,0), and (4,0) bands

Niu, M., Ramirez, F., Salumbides, E. J. & Ubachs, W. M. G., 2015, In : Journal of Chemical Physics. 142, 4, p. 044302 044302.

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

High resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of 14N15N

Heays, A. N., Dickenson, G. D., Salumbides, E. J., de Oliveira, N., Joyeux, D., Nahon, L., Lewis, B. R. & Ubachs, W. M. G., 2011, In : Journal of Chemical Physics. 135, 24, p. 244301

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
128 Downloads (Pure)

High-resolution Fourier-transform spectroscopy and deperturbation analysis of the A1Π(v = 1) level in 12C18O

Malicka, M. I., Ryzner, S., Heays, A. N., de Oliveira, N., Field, R. W., Ubachs, W. & Hakalla, R., 4 Aug 2020, In : Journal of Quantitative Spectroscopy and Radiative Transfer. 255, p. 1-16 16 p., 107243.

Research output: Contribution to JournalArticleAcademicpeer-review

High resolution spectroscopy and perturbation analysis of the CO A1Π -X1Σ+ (0,0) and (1,0) bands

Niu, M., Salumbides, E. J., Zhao, D., de Oliveira, N., Joyeux, D., Nahon, L., Field, R. W. & Ubachs, W. M. G., 2013, In : Molecular Physics. 111, 14-15, p. 2163-214-74

Research output: Contribution to JournalArticleAcademicpeer-review

Introduction to the Special issue Spectroscopic Tests of Fundamental Physics

Steimle, T. & Ubachs, W. M. G., 2014, In : Journal of Molecular Spectroscopy. 300, SI, p. 1-2 2 p.

Research output: Contribution to JournalArticleAcademicpeer-review

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

Isotope selective photodissociation of N-2 by the interstellar radiation field and cosmic rays

Heays, A. N., Visser, R., Gredel, R., Ubachs, W. M. G., Lewis, B. R., Gibson, S. T. & van Dishoeck, E. F., 2014, In : Astronomy and Astrophysics. 562, A61.

Research output: Contribution to JournalArticleAcademicpeer-review

Lamb-dips and Lamb-peaks in the saturation spectrum of HD

Diouf, M. L., Cozijn, F. M. J., Darquié, B., Salumbides, E. J. & Ubachs, W., 1 Oct 2019, In : Optics Letters. 44, 19, p. 4733-4736 4 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Laser cooling of beryllium ions using a frequency-doubled 626 nm diode laser

Cozijn, F. M. J., Biesheuvel, J., Flores, A. S., Ubachs, W. M. G., Blume, G., Wicht, A., Paschke, K., Erbert, G. & Koelemeij, J. C. J., 2013, In : Optics Letters. 38, 13, p. 2370-2372

Research output: Contribution to JournalArticleAcademicpeer-review

Lifetime measurements of the A 2 Π1/2 and A 2 Π3/2 states in BaF

NL-eEDM Collaboration, 12 Nov 2019, In : Physical Review A. 100, 5, p. 1-5 5 p., 052503.

Research output: Contribution to JournalArticleAcademicpeer-review

Limits on a gravitational field dependence of the proton-electron mass ratio from h_{2} in white dwarf stars.

Bagdonaite, J., Salumbides, E. J., Preval, S. P., Barstow, M. A., Barrow, J. D., Murphy, M. T. & Ubachs, W. M. G., 2014, In : Physical Review Letters. 113, 12, 123002.

Research output: Contribution to JournalArticleAcademicpeer-review

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

Methanol as a Sensitive Probe for Spatial and Temporal Variations of the Proton-to-Electron Mass Ratio

Jansen, P., Xu, L-H., Kleiner, I., Ubachs, W. M. G. & Bethlem, H. L., 2011, In : Physical Review Letters. 106, 10, p. 100801

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
211 Downloads (Pure)

Methyl mercaptan (CH3SH) as a probe for variation of the proton-to-electron mass ratio

Jansen, P., Xu, L. H., Kleiner, I., Bethlem, H. L. & Ubachs, W. M. G., 2013, In : Physical Review A. 87, 5, 052509.

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
81 Downloads (Pure)

New constraint on cosmological variation of the proton-to-electron mass ratio from Q0528-250

King, J. A., Murphy, M. T., Ubachs, W. M. G. & Webb, J. K., 2011, In : Monthly Notices of the Royal Astronomical Society. 417, p. 3010-3024 15 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
191 Downloads (Pure)

Novel techniques in VUV high-resolution spectroscopy

Ubachs, W. M. G., Salumbides, E. J., Eikema, K. S. E., de Oliveira, N. & Nahon, L., 2014, In : Journal of Electron Spectroscopy and Related Phenomena. 196, p. 159-164

Research output: Contribution to JournalArticleAcademicpeer-review

Observation of the v '=8 <- v=0 vibrational overtone in cold trapped HD+

Koelemeij, J. C. J., Noom, D. W. E., de Jong, D., Haddad, M. A. & Ubachs, W. M. G., 2012, In : Applied Physics B. Lasers and Optics. 107, 4, p. 1075-1085

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

Optomechanical Shutter Modulated Broad-Band Cavity−Enhanced Absorption Spectroscopy of Molecular Transients of Astrophysical Interest

Walsh, A., Zhao, D., Ubachs, W. M. G. & Linnartz, H. V. J., 2013, In : Journal of Physical Chemistry A.

Research output: Contribution to JournalArticleAcademicpeer-review

Perspective: Tipping the scales: Search for drifting constants from molecular spectra

Jansen, P., Bethlem, H. L. & Ubachs, W. M. G., 2014, In : Journal of Chemical Physics. 140, 1, 010901.

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

Photodissociation of interstellar N2

Li, X., Heays, A. N., Visser, R., Ubachs, W. M. G., Lewis, B. R., Gibson, S. T. & van Dishoeck, E. F., 2013, In : Astronomy and Astrophysics. 555, 18 p., A14.

Research output: Contribution to JournalArticleAcademicpeer-review

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

Plasmon switching: Observation of dynamic surface plasmon steering by selective mode excitation in a sub-wavelength slit

Raghunathan, S. B., Gan, C. H., van Dijk, T., Kim, B. E., Schouten, H., Ubachs, W. M. G., Lalanne, P. & Visser, T. D., 2012, In : Optics Express. 20, 14, p. 15326-15335

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
159 Downloads (Pure)

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