scholarly journals Isotope shift in the neon ground state by extreme-ultraviolet laser spectroscopy at 74 nm

1994 ◽  
Vol 49 (2) ◽  
pp. 803-808 ◽  
Author(s):  
K. S. E. Eikema ◽  
W. Ubachs ◽  
W. Hogervorst
Keyword(s):  
Laser Spectroscopy ◽  
Ground State ◽  
Isotope Shift ◽  
Extreme Ultraviolet ◽  
Ultraviolet Laser

scholarly journals Sub-Doppler laser spectroscopy of H2 and D2 in the range 91–98 nm

1994 ◽  
Vol 72 (11-12) ◽  
pp. 1032-1042 ◽  
Author(s):  
P. C. Hinnen ◽  
W. Hogervorst ◽  
S. Stolte ◽  
W. Ubachs
Keyword(s):  
Absorption Spectra ◽  
Laser Spectroscopy ◽  
Molecular Beam ◽  
Extreme Ultraviolet ◽  
Laser Source ◽  
Absolute Accuracy ◽  
Ultraviolet Laser ◽  
Perturbation Model ◽  
Semi Empirical

The absorption spectra of hydrogen and deuterium have been measured in the range 91–98 nm. A narrowband extreme ultraviolet laser source is employed in combination with a molecular beam, allowing for sub-Doppler resolution and yielding linewidths of 0.23 cm−1. Transition frequencies of 291 lines of the Lyman and Werner bands are determined with an average absolute accuracy of 0.03 cm−1. The data are analyzed in a semi-empirical perturbation model, involving heterogeneous couplings between nearby lying levels of B1Σu+ and C1Πu states. This model is found to be accurate on the level of accuracy of the data obtained.

scholarly journals Extreme ultraviolet laser spectroscopy on CO in the 91–100 nm range

1992 ◽  
Vol 97 (10) ◽  
pp. 7160-7166 ◽  
Author(s):  
Pieternel F. Levelt ◽  
Wim Ubachs ◽  
Wim Hogervorst
Keyword(s):  
Laser Spectroscopy ◽  
Extreme Ultraviolet ◽  
Ultraviolet Laser ◽  
Nm Range

High-resolution vacuum ultraviolet laser spectroscopy of the C 0+u ← X 0+g transition of Xe2

2004 ◽  
Vol 82 (6) ◽  
pp. 750-761 ◽  
Author(s):  
A Wüest ◽  
U Hollenstein ◽  
K G de Bruin ◽  
F Merkt
Keyword(s):  
High Resolution ◽  
Laser Spectroscopy ◽  
Interaction Potential ◽  
Ground State ◽  
Vacuum Ultraviolet ◽  
Second Virial Coefficient ◽  
Chem Phys ◽  
Rotational Constants ◽  
Ultraviolet Laser ◽  
Vacuum Ultraviolet Laser

Rotationally resolved (1 + 1′), resonance-enhanced, two-photon ionization spectra of the C 0+u ← X 0+g transition of several isotopomers of Xe2 have been recorded. Rotational constants have been determined for the v′ = 14–26 levels of the C 0+u Rydberg state and the v′′ = 0 and 1 levels of the X 0+g ground state, and band origins have been determined with an absolute accuracy of 0.015 cm–1 for the transitions to the v′ = 14–26 levels of the C 0+u state of the 129Xe2, 129Xe–132Xe, and 131Xe–136Xe isotopomers. The equilibrium internuclear separation of the X 0+g ground state (Re = 4.3773(49) Å) was determined from the rotational constants of the v′′ = 0 and 1 levels. The analysis of the isotopic shifts of the band origins enabled the confirmation of the absolute numbering of the vibrational levels of the C 0+u state determined by Lipson et al. (R.H. Lipson, P.E. Larocque, and B.P. Stoicheff. J. Chem. Phys. 82, 4470 (1985)). A semiempirical interaction potential for the X 0+g ground state was derived in a nonlinear fitting procedure using the present spectroscopic results, the positions of the v′′ = 2–9 levels determined by Freeman et al. (D.E. Freeman, K. Yoshino, and Y. Tanaka. J. Chem. Phys. 61, 4880 (1974)) and experimental values for the second virial coefficient. The interaction potential is similar to previous semiempirical potentials but the dissociation energy (De = (196.1 ± 1.1) cm–1) differs from the value of 183.1 cm–1 determined in the latest ab initio calculation (P. Slavíček, R. Kalus, P. Paška, I. Odvárková, P. Hobza, and A. Malijevský. J. Chem. Phys. 119, 2102 (2003)). Key words: high-resolution vacuum ultraviolet laser spectroscopy, rare gas dimers and their cations, photoionisation, Xe2, rotationally resolved electronic spectrum.

scholarly journals Nanoimaging with a compact extreme-ultraviolet laser

2005 ◽  
Vol 30 (16) ◽  
pp. 2095 ◽  
Author(s):  
G. Vaschenko ◽  
F. Brizuela ◽  
C. Brewer ◽  
M. Grisham ◽  
H. Mancini ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Ultraviolet Laser

Fabrication of metallic micropatterns using table top extreme ultraviolet laser interferometric lithography

2008 ◽  
Vol 17 (2) ◽  
pp. 024019 ◽  
Author(s):  
L Ottaviano ◽  
F Bussolotti ◽  
S Piperno ◽  
M Rinaldi ◽  
S Santucci ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Ultraviolet Laser ◽  
Interferometric Lithography ◽  
Laser Interferometric

scholarly journals Extreme-ultraviolet laser metrology of O i transitions

2008 ◽  
Vol 389 (1) ◽  
pp. L4-L7 ◽  
Author(s):  
T. I. Ivanov ◽  
E. J. Salumbides ◽  
M. O. Vieitez ◽  
P. C. Cacciani ◽  
C. A. de Lange ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Ultraviolet Laser ◽  
Laser Metrology

scholarly journals Laser spectroscopy of the 1001-nm ground-state transition in dysprosium

2018 ◽  
Vol 98 (4) ◽  
Author(s):  
D. Studer ◽  
L. Maske ◽  
P. Windpassinger ◽  
K. Wendt
Keyword(s):  
Laser Spectroscopy ◽  
Ground State ◽  
State Transition ◽  
Ground State Transition
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