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  • WMG Ubachs
Article

Spectral characterization of an industrial EUV light source for nanolithography

Torretti, F., Liu, F., Bayraktar, M., Scheers, J., Bouza, Z., Ubachs, W., Hoekstra, R. & Versolato, O., 1 Jan 2020, In : Journal of Physics D. Applied Physics. 53, 5, p. 1-7 7 p., 055204.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Spectral identification of diffuse resonances in H2 above the n=2 dissociation limit

Ivanov, T. I., de Lange, C. A. & Ubachs, W. M. G., 2011, In : Journal of Chemical Physics. 134, p. 054309 10 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
163 Downloads (Pure)

Spectroscopic investigations of YAG-laser-driven microdroplet-tin plasma sources of extreme ultraviolet radiation for nanolithography

Versolato, O., Bayerle, A., Bayraktar, M., Behnke, L., Bekker, H., Bouza, Z., Colgan, J., Crespo López-Urrutia, J. R., Deuzeman, M. J., Hoekstra, R., Kurilovich, D., Liu, B., Meijer, R., Neukirch, A., Poirier, L., Rai, S., Ryabtsev, A., Scheers, J., Schupp, R., Sheil, J. & 3 others, Torretti, F., Ubachs, W. & Witte, S., 11 Jun 2020, In : Journal of Physics: Conference Series. 1412, 19, p. 1-1 1 p., 192006.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Spectroscopic-network-assisted precision spectroscopy and its application to water

Tóbiás, R., Furtenbacher, T., Simkó, I., Császár, A. G., Diouf, M. L., Cozijn, F. M. J., Staa, J. M. A., Salumbides, E. J. & Ubachs, W., 6 Apr 2020, In : Nature Communications. 11, 1, p. 12 1 p., 1708.

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

Spin-orbit Splitting and Lifetime Broadening in the A(2)Delta Electronic State of l-C5H

Haddad, M. A., Zhao, D., Linnartz, H. V. J. & Ubachs, W. M. G., 2012, In : Chinese Journal of Chemical Physics. 25, 2, p. 129-134

Research output: Contribution to JournalArticleAcademicpeer-review

Structure determination of the non-linear hydrocarbon chains C9H3 and C11H3 by deuterium labeling

Zhao, D., Haddad, M. A., Linnartz, H. V. J. & Ubachs, W. M. G., 2011, In : Journal of Chemical Physics. 135, p. 074201 074201.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
158 Downloads (Pure)

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

Temperature-dependent bulk viscosity of nitrogen gas determined from spontaneous Rayleigh-Brillouin scattering

Gu, Z. & Ubachs, W. M. G., 2013, In : Optics Letters. 38, 7, p. 1110-2

Research output: Contribution to JournalArticleAcademicpeer-review

Temperature retrieval from Rayleigh-Brillouin scattering profiles measured in air

Witschas, B. & Ubachs, W. M. G., 2014, In : Optics Express. 22, 24, p. 29655-29667

Research output: Contribution to JournalArticleAcademicpeer-review

Testing the mass-scaling relations in the a3P state of 12C18O and 13C16O

de Nijs, A. J., Zhao, D., Bethlem, H. L., Linnartz, H. V. J. & Ubachs, W. M. G., 2013, In : Journal of Molecular Spectroscopy. 292, p. 20-22

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
133 Downloads (Pure)

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

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
File
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 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 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

Time- and space-resolved optical Stark spectroscopy in the afterglow of laser-produced tin-droplet plasma

Scheers, J., Schupp, R., Meijer, R., Ubachs, W., Hoekstra, R. & Versolato, O. O., Jul 2020, In : Physical review E. 102, 1, p. 1-9 9 p., 013204.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

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)

Two-photon Doppler-free ultraviolet laser spectroscopy on sulphur atoms

Lai, K. F., Salumbides, E. J. & Ubachs, W., 14 Sep 2020, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 53, 17, p. 1-5 5 p., 175002.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
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 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)
Chapter

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

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

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)
Conference contribution

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

Determination of the ionization and dissociation energies of H2 and He2

Liu, J., Sprecher, D., Merkt, F., Salumbides, E. J. & Ubachs, W., 2012, International Conference of Computational Methods in Sciences and Engineering 2009, ICCMSE 2009. Vol. 1504. p. 495-498 4 p.

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

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

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

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

Visser, T. D., Raghunathan, S. B., van Dijk, T., Schouten, H. F., Ubachs, W., Lalanne, P., Ea Kim, B. & Gan, C. H., 2012, Frontiers in Optics, FIO 2012.

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

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

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

Review article

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 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