Zobrazeno 1 - 10
of 690
pro vyhledávání: '"W. Ubachs"'
Autor:
F. Torretti, J. Sheil, R. Schupp, M. M. Basko, M. Bayraktar, R. A. Meijer, S. Witte, W. Ubachs, R. Hoekstra, O. O. Versolato, A. J. Neukirch, J. Colgan
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Extreme ultraviolet (EUV) light is entering use in nanolithography. Here the authors discuss experimental and theoretical results about the prominent role of multiply-excited states in highly charged tin ions in the mechanism of EUV light emission fr
Externí odkaz:
https://doaj.org/article/6a95599c1e5e4450b7df90e19506645e
Autor:
Z. Bouza, J. Byers, J. Scheers, R. Schupp, Y. Mostafa, L. Behnke, Z. Mazzotta, J. Sheil, W. Ubachs, R. Hoekstra, M. Bayraktar, O. O. Versolato
Publikováno v:
AIP Advances, Vol 11, Iss 12, Pp 125003-125003-8 (2021)
We present a calibrated spectrum in the 5.5–265.5 nm range from a microdroplet-tin Nd:YAG-laser-produced plasma under conditions relevant for the production of extreme ultraviolet (EUV) light at 13.5 nm for nanolithography. The plasma emission spec
Externí odkaz:
https://doaj.org/article/c153071acac5497b9b64aa45cfd1ac54
Autor:
M. Germann, S. Patra, J.-Ph. Karr, L. Hilico, V. I. Korobov, E. J. Salumbides, K. S. E. Eikema, W. Ubachs, J. C. J. Koelemeij
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p L022028 (2021)
We present a parts-per-million test of quantum electrodynamics (QED) in the HD^{+} molecular hydrogen ion, improving on previous tests based on vibrational and rotational transitions by factors of 76 and 1.4, respectively. The test is performed follo
Externí odkaz:
https://doaj.org/article/e43088a0d3514149a48a7f37acbbc988
Autor:
R. Schupp, L. Behnke, J. Sheil, Z. Bouza, M. Bayraktar, W. Ubachs, R. Hoekstra, O. O. Versolato
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013294 (2021)
Experimental spectroscopic studies are presented, in a 5.5–25.5 nm extreme-ultraviolet (EUV) wavelength range, of the light emitted from plasma produced by the irradiation of tin microdroplets by 5-ns-pulsed, 2-μm-wavelength laser light. Emission
Externí odkaz:
https://doaj.org/article/68ecc136d37a433d8a6e988b0a935c49
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Molecular hydrogen ions, the simplest molecules in nature, constitute a benchmark system for tests of quantum electrodynamics in complex forms of matter. Here, the authors report on a laser spectroscopic frequency measurement of a transition in HD+in
Externí odkaz:
https://doaj.org/article/7879399ed9814f5f937fda0d68c3c062
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023209 (2020)
A saturation spectroscopy measurement of the P(1) line of the (2-0) band in HD is performed in a sensitive cavity-enhanced optical setup involving frequency comb calibration. The spectral signature is that of a Lamb peak, in agreement with a density-
Externí odkaz:
https://doaj.org/article/dfb7b79309924b778c85686725651e9a
Autor:
K.-F. Lai, P. Czachorowski, M. Schlösser, M. Puchalski, J. Komasa, K. Pachucki, W. Ubachs, E. J. Salumbides
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033124 (2019)
First-principles calculations are presented for fundamental vibrational splitting energies of tritium-bearing molecular hydrogen species with the improved treatment of the nonrelativistic, relativistic, and quantum electrodynamic energy contributions
Externí odkaz:
https://doaj.org/article/de07cb160e634af8bccc274b603922ac
Publikováno v:
Astrophysical Journal, Supplement Series, 260(2):37, 1-14. IOP Publishing Ltd.
Lai, K F, Manalili, D, Ubachs, W, Cooke, R, Pettini, M, De Oliveira, N & Salumbides, E J 2022, ' Vacuum Ultraviolet Fourier-transform Spectroscopy of 16 O and 18 O ', Astrophysical Journal, Supplement Series, vol. 260, no. 2, 37, pp. 1-14 . https://doi.org/10.3847/1538-4365/ac6350
The Astrophysical Journal Supplement Series, 2022, Vol.260(2), pp.37 [Peer Reviewed Journal]
Lai, K F, Manalili, D, Ubachs, W, Cooke, R, Pettini, M, De Oliveira, N & Salumbides, E J 2022, ' Vacuum Ultraviolet Fourier-transform Spectroscopy of 16 O and 18 O ', Astrophysical Journal, Supplement Series, vol. 260, no. 2, 37, pp. 1-14 . https://doi.org/10.3847/1538-4365/ac6350
The Astrophysical Journal Supplement Series, 2022, Vol.260(2), pp.37 [Peer Reviewed Journal]
A spectroscopic study of atomic oxygen (O i) is performed using the Fourier-transform vacuum ultraviolet (VUV) spectrometer at the Dichroïsme Et Spectroscopie par Interaction avec le Rayonnement Synchrotron beamline of the SOLEIL synchrotron. Transi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::565bcab51cc3964b7a096032b43998c8
https://research.vu.nl/en/publications/6d8c10ba-73d3-4902-a9ac-dcb2b3a8285f
https://research.vu.nl/en/publications/6d8c10ba-73d3-4902-a9ac-dcb2b3a8285f
Publikováno v:
Physical Review A, 105(6):062823, 1-8. American Physical Society
Cozijn, F M J, Diouf, M L, Hermann, V, Salumbides, E J, Schlösser, M & Ubachs, W 2022, ' Rotational level spacings in HD from vibrational saturation spectroscopy ', Physical Review A, vol. 105, no. 6, 062823, pp. 1-8 . https://doi.org/10.1103/PhysRevA.105.062823
Cozijn, F M J, Diouf, M L, Hermann, V, Salumbides, E J, Schlösser, M & Ubachs, W 2022, ' Rotational level spacings in HD from vibrational saturation spectroscopy ', Physical Review A, vol. 105, no. 6, 062823, pp. 1-8 . https://doi.org/10.1103/PhysRevA.105.062823
The R(1), R(3) and P(3) ro-vibrational transitions in the (2-0) overtone band of the HD molecule are measured in Doppler-free saturation using the technique of NICE-OHMS spectroscopy. For the P(3) line, hitherto not observed in saturation, we report
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dec95e6072dbe2794cbd5282712b6dd
https://hdl.handle.net/1871.1/23e6532a-7d75-4dd8-8e1f-1f5eaa07ae6b
https://hdl.handle.net/1871.1/23e6532a-7d75-4dd8-8e1f-1f5eaa07ae6b
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