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  • WMG Ubachs

Testing the time-invariance of fundamental constants using cold and not-so-cold molecules

Bethlem, H. L., Jansen, P. & Ubachs, W., 2012, International Conference of Computational Methods in Sciences and Engineering 2009, ICCMSE 2009. Vol. 1504. p. 454-457 4 p.

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

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 4051 Å comet band of 13C3

Haddad, M. A., Zhao, D., Linnartz, H. & Ubachs, W., Feb 2014, In : Proceedings of the International Astronomical Union. 9, S297, p. 297-299 3 p.

Research output: Contribution to JournalArticleAcademicpeer-review

The D-1 Pi(u) state of HD and the mass scaling relation of its predissociation widths

Dickenson, G. D. & Ubachs, W. M. G., 2012, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 45, 14

Research output: Contribution to JournalArticleAcademicpeer-review

The electronic spectrum of the Cs-C11H3 radical

Zhao, D., Linnartz, H. V. J. & Ubachs, W. M. G., 2012, In : Journal of Chemical Physics. 136, 5, p. 054307

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
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232 Downloads (Pure)

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 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 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

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

The spin-forbidden vacuum-ultraviolet absorption spectrum of 14N15N

Heays, A. N., Lewis, B. R., De Oliveira, N. & Ubachs, W., 14 Dec 2019, In : Journal of Chemical Physics. 151, 22, p. 1-13 13 p., 224305.

Research output: Contribution to JournalArticleAcademicpeer-review

Towards measuring the ionisation and dissociation energies of molecular hydrogen with sub-MHz accuracy

Sprecher, D., Jungen, C., Ubachs, W. M. G. & Merkt, F., 2011, In : Faraday Discussions. 150, p. 51-70

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
216 Downloads (Pure)
Open Access
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98 Downloads (Pure)

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

VUV Fourier-transform absorption study of the Lyman and Werner bands in D-2

de Lange, A., Dickenson, G. D., Salumbides, E. J., Ubachs, W. M. G., de Oliveira, N., Joyeux, D. & Nahon, L., 2012, In : Journal of Chemical Physics. 136, 23

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
135 Downloads (Pure)

VUV spectroscopic study of the B '' (B)over-bar(1) Sigma(+)(u) state of H-2

Dickenson, G. D. & Ubachs, W. M. G., 2014, In : Molecular Physics. 112, 8, p. 1089-1093

Research output: Contribution to JournalArticleAcademicpeer-review

VUV spectroscopic study of the D1Piu state of molecular deuterium

Dickenson, G. D., Ivanov, T. I., Ubachs, W. M. G., Roudjane, M., de Oliveira, N., Joyeux, D., Nahon, L., Tchang-Brillet, W. U. L., Glass-Maujean, M., Schmoranzer, H., Knie, H., Kubler, S. & Ehresmann, A., 2011, In : Molecular Physics. 109, 22, p. 2396-2708

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
148 Downloads (Pure)

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

Widely tunable laser frequency offset lock with 30 GHz range and 5 THz offset

Biesheuvel, J., Noom, D. W. E., Salumbides, E. J., Sheridan, K. T., Ubachs, W. M. G. & Koelemeij, J. C. J., 2013, In : Optics Express. 21, 12, p. 14008-14016

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
231 Downloads (Pure)

XUV frequency comb metrology on the ground state of helium

Kandula, D. Z., Gohle, C., Pinkert, T. J., Ubachs, W. M. G. & Eikema, K. S. E., 2011, In : Physical Review A. Atomic, Molecular and Optical Physics. 84, 6, 062512.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
143 Downloads (Pure)