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  • WMG Ubachs
Short survey

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

Report

A Spontaneous Rayleigh-Brillouin scattering experiment for the characterization of atmospheric Lidar backscatter

Ubachs, W. M. G., van Duijn, E-J., Vieitez, M. O., Van de Water, W., Dam, N., Ter Meulen, J. J., Meijer, A., De Kloe, J., Stoffelen, A. & Aben, E. A. A., 2010, Amsterdam: Report European Space Agency AO/1-5467/07/NL/HE.

Research output: Book / ReportReportProfessional

Open Access
File
74 Downloads (Pure)
Erratum

Synchrotron vacuum ultraviolet radiation studies of the D(1)Pi(u) state of H(2)

Dickenson, G. D., Ivanov, T. I., Roudjane, M., de Oliveira, N., Joyeux, D., Nahon, L., Tchang-Brillet, W. U. L., Glass-Maujean, M., Haar, I., Ehresmann, A. & Ubachs, W. M. G., 2010, In : Journal of Chemical Physics. 133, 14, p. 144317 10 p.

Research output: Contribution to JournalErratumAcademic

Open Access
File
89 Downloads (Pure)
Conference contribution

Direct frequency comb spectroscopy in a linear paul trap

Wolf, A. L., Morgenweg, J., Van Den Berg, S. A., Ubachs, W. & Eikema, K. S. E., 2010, International Conference on Ultrafast Phenomena, UP 2010.

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

Direct frequency comb spectroscopy in trapped 40Ca + ions on a dipoleforbidden clock transition

Wolf, A. L., Morgenweg, J., Koelemeij, J. C. J., Van Den Berg, S. A., Ubachs, W. & Eikema, K. S. E., 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 5943528

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

ESA's wind Lidar mission ADM-AEOLUS; on-going scientific activities related to calibration, retrieval and instrument operation

Rille, O., Straume, A. G., Vieitez, M. O., Ubachs, W. M. G., Witschas, B., Marseille, G. J., Kloe, J., Stoffelen, A., Houchi, K., Körnich, H. & Schyberg, H., 2010, 25th International Lidar Radar Conference Proceedings. St. Petersburg

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

File
11 Downloads (Pure)

Evanescent-wave cavity enhanced spectroscopy as a tool in label-free biosensing

van der Sneppen, L., Ritchie, G. R. S., Hancock, G., Ariese, F., Gooijer, C., Ubachs, W., Haselberg, R., Somsen, G. W. & De Jong, G. J., 2010, Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. 5499550

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

Frequency comb metrology at PHz frequencies: Precision in the extreme ultraviolet

Gohle, C., Kandula, D. Z., Pinkert, T. J., Morgenweg, J., Barmes, I., Ubachs, W. & Eikema, K. S. E., 2011, 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011. 6050328

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

Frequency comb metrology in the extreme ultraviolet

Kandula, D. Z., Gohle, C., Pinkert, T. J., Morgenweg, J., Barmes, I., Ubachs, W. & Eikema, K. S. E., 2011, 2011 Conference on Lasers and Electro-Optics: Laser Science to Photonic Applications, CLEO 2011. 5950371

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

Search for cosmological μ-variation from high-redshift H2 absorption; a status report

Ubachs, W., Bagdonaite, J., Murphy, M. T., Buning, R. & Kaper, L., 2011, From Varying Couplings to Fundamental Physics - Proceedings of Symposium 1 of JENAM 2010. Kluwer Academic Publishers., p. 125-137 13 p.

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

Tests of fundamental physics using ramsey-comb spectroscopy on the hydrogen molecule

Roth, C., Dreissen, L. S., Grundeman, E. L., Krauth, J. J., Favier, M., Salumbides, E. J., Ubachs, W. & Eikema, K. S. E., 17 Oct 2019, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. Institute of Electrical and Electronics Engineers Inc., 8872740. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).

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

Tests of fundamental physics using Ramsey-comb spectroscopy on the hydrogen molecule

Roth, C., Dreissen, L. S., Gründeman, E. L., Krauth, J. J., Favier, M., Salumbides, E. J., Ubachs, W. & Eikema, K. S. E., 1 Jan 2019, European Quantum Electronics Conference, EQEC_2019. OSA - The Optical Society, 2019-ed_2_1. (Optics InfoBase Conference Papers; vol. Part F143-EQEC 2019).

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

The H2 molecule; test of QED and varying constants

Ubachs, W., 2013, Laser Science, LS 2013. Optical Society of America

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

The pancharatnam-berry phase for non-cyclic polarization changes

Van Dijk, T., Schouten, H. F., Ubachs, W. & Visser, T. D., 2011, Frontiers in Optics, FiO 2011.

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

Widely tunable extreme ultraviolet frequency comb generation

Pinkert, T. J., Kandula, D. Z., Gohle, C., Morgenweg, J., Barmes, I., Ubachs, W. & Eikema, K. S. E., 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 5943518

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

XUV frequency comb spectroscopy

Gohle, C., Kandula, D. Z., Pinkert, T. J., Ubachs, W. & Eikema, K. S. E., 2010, International Conference on Ultrafast Phenomena, UP 2010.

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

Chapter

Precision Laser spectroscopy in the Extreme Ultraviolet

Eikema, K. S. E. & Ubachs, W. M. G., 2010, Handbook of high resolution spectroscopy. Quack, M. & Merkt, F. (eds.). John Wiley & Sons, 42 p.

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

File
126 Downloads (Pure)

Search for cosmological mu variation form high-redshift H2 absorption; a status report

Ubachs, W. M. G., Bagdonaite, J., Murphy, M. T., Buning, R. & Kaper, L., 2011, From Varying Couplings to Fundamental Physics. Martins, C. & Molaro, P. (eds.). Berlin-Heidelberg: Springer, p. 125 (Astrophysics and Space Science Proceedings).

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

File
88 Downloads (Pure)

XUV frequency comb spectroscopy

Gohle, C., Kandula, D. Z., Pinkert, T. J., Ubachs, W. M. G. & Eikema, K. S. E., 2010, Proceedings of the XIX International Conference on Laser Spectroscopy. Katori, H., Nakagawa, K. & Yoneda, H. (eds.). World Scientific, p. 171-180

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

File
58 Downloads (Pure)
Article

50 jaar Laser

Ubachs, W. M. G., 2010, In : Nederlands Tijdschrift voor Natuurkunde. 76, p. 172-174

Research output: Contribution to JournalArticleAcademic

Open Access
File
5 Downloads (Pure)

Accurate level energies in the EF1S+g, GK1S+g, H1S+g, B1S+u, C1Pu, B'1S+u, D1Pu, I1Pg, J1Dg states of H2

Bailly, D., Salumbides, E. J., Vervloet, M. & Ubachs, W. M. G., 2010, In : Molecular Physics. 108, p. 827-846

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
149 Downloads (Pure)

A high-velocity narrow absorption line outflow in the quasar J212329.6-005052.9

Hamann, F., Kanekar, N., Prochaska, J. X., Murphy, M. T., Ellison, S. L., Malec, A. L., Milutinovic, N. & Ubachs, W. M. G., 2011, In : Monthly Notices of the Royal Astronomical Society. 410, p. 1957-1974

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
153 Downloads (Pure)

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

ANALYSIS OF MOLECULAR HYDROGEN ABSORPTION TOWARD QSO B0642-5038 FOR A VARYING PROTON-TO-ELECTRON MASS RATIO

Bagdonaite, J., Ubachs, W. M. G., Murphy, M. T. & Whitmore, J. B., 2014, In : Astrophysical Journal. 782, 1, 10.

Research output: Contribution to JournalArticleAcademicpeer-review

Analysis of Rayleigh-Brillouin spectral profiles and Brillouin shifts in nitrogen gas and air

Ma, Y., Li, H., Gu, Z., Ubachs, W. M. G., Yu, Y., Huang, J., Zhou, B., Wang, Y. & Liang, K., 2014, In : Optics Express. 22, 2, p. 2092-2104

Research output: Contribution to JournalArticleAcademicpeer-review

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 stringent limit on a drifting proton-to-electron mass ratio from alcohol in the early Universe

Bagdonaite, J., Jansen, P., Henkel, C., Bethlem, H. L., Menten, K. & Ubachs, W. M. G., 2013, In : Science. 339, 6115, p. 46-48 3 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
273 Downloads (Pure)

A systematic study of Rayleigh-Brillouin scattering in air, N-2, and O-2 gases

Gu, Z. & Ubachs, W. M. G., 2014, In : Journal of Chemical Physics. 141, 10, 104320.

Research output: Contribution to JournalArticleAcademicpeer-review

B1Su+ and EF1Sg+ level energies of D2

Salumbides, E. J., Bailly, D., Vervloet, M. & Ubachs, W. M. G., 2014, In : Journal of Molecular Spectroscopy. 305, p. 34-39

Research output: Contribution to JournalArticleAcademicpeer-review

Benchmarking Theory with an Improved Measurement of the Ionization and Dissociation Energies of H2

Hölsch, N., Beyer, M., Salumbides, E. J., Eikema, K. S. E., Ubachs, W., Jungen, C. & Merkt, F., 15 Mar 2019, In : Physical Review Letters. 122, 10, p. 1-6 6 p., 103002.

Research output: Contribution to JournalArticleAcademicpeer-review

Bounds on fifth forces at the sub-angstrom length scale

Salumbides, E. J., Ubachs, W. M. G. & Korobov, V. I., 2014, In : Journal of Molecular Spectroscopy. 300, SI, p. 65-69

Research output: Contribution to JournalArticleAcademicpeer-review

Bounds on fifth forces from precision measurements on molecules

Salumbides, E. J., Koelemeij, J. C. J., Komasa, J., Pachucki, K., Eikema, K. S. E. & Ubachs, W. M. G., 2013, In : Physical Review D. 87, 11, 112008.

Research output: Contribution to JournalArticleAcademicpeer-review

Broadband cavity enhanced absorption spectroscopy: A new approach to search for DIB carriers

Walsh, A. J., Zhao, D., Ubachs, W. & Linnartz, H., Feb 2014, In : Proceedings of the International Astronomical Union. 9, S297, p. 281-285 5 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Bulk viscosity of CO2 from Rayleigh-Brillouin light scattering spectroscopy at 532 nm

Wang, Y., Ubachs, W. & van de Water, W., 21 Apr 2019, In : Journal of Chemical Physics. 150, 15, p. 1-10 10 p., 154502.

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

C6H and C6D: electronic spectra and Renner-Teller analysis

Zhao, D., Haddad, M. A., Linnartz, H. V. J. & Ubachs, W. M. G., 2011, In : Journal of Chemical Physics. 135, p. 044307 044307.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
140 Downloads (Pure)

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

Cavity ring-down UV spectroscopy of the C 2 Σ + -X 2 Π electronic transition of CH

Medcraft, C., Linnartz, H. & Ubachs, W., Jun 2019, In : Journal of Molecular Spectroscopy. 360, p. 15-23 9 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Coherent and spontaneous Rayleigh-Brillouin scattering in molecular gases and gas mixtures

Vieitez, M. O., van Duijn, E-J., Ubachs, W. M. G., Witschas, B., Meijer, A., De Wijn, A. S., Dam, N. & Van de Water, W., 2010, In : Physical Review A. Atomic, Molecular and Optical Physics. 82, p. 043836

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
62 Downloads (Pure)

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

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

Cosmological concordance or chemical coincidence ? Deuterated molecular hydrogen abundances at high redshift

Tumlinson, J., Malec, A. L., Carswell, R. F., Murphy, M. T., Buning, R., Milutinovic, N., Ellison, S. L., Prochaska, X. L., Jorgenson, R. A., Ubachs, W. M. G. & Wolfe, A. M., 2010, In : Astrophysical Journal Letters. 718, p. L156

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
132 Downloads (Pure)

Determination of ionization and dissociation energies of HD

Sprecher, D., Liu, J. J., Jungen, C., Ubachs, W. M. G. & Merkt, F., 2010, In : Journal of Chemical Physics. 133, p. 111102

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
92 Downloads (Pure)

Determination of ionization and dissociation energies of the deuterium molecule (D2)

Liu, J. J., Sprecher, D., Jungen, C., Ubachs, W. M. G. & Merkt, F., 2010, In : Journal of Chemical Physics. 132, p. 154301

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
262 Downloads (Pure)

Determination of the Interval between the Ground States of Para- and Ortho- H2

Beyer, M., Hölsch, N., Hussels, J., Cheng, C. F., Salumbides, E. J., Eikema, K. S. E., Ubachs, W., Jungen, C. & Merkt, F., 16 Oct 2019, In : Physical Review Letters. 123, 16, p. 1-6 6 p., 163002.

Research output: Contribution to JournalArticleAcademicpeer-review

Direct frequency-comb spectroscopy of a dipole-forbidden clock transition in trapped 40Ca+ ions

Wolf, A. L., Morgenweg, J., Koelemeij, J. C. J., van den Berg, S. A., Ubachs, W. M. G. & Eikema, K. S. E., 2011, In : Optics Letters. 36, 1, p. 49-51 3 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
129 Downloads (Pure)

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

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

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