Publications (7)
Hydrogen Bonding in Ionic Liquids Probed by Linear and Nonlinear Vibrational Spectroscopy
C. Roth, S. Chatzipapadopoulos, D. Kerlé +5
Three imidazolium-based ionic liquids of the type [Cnmim][NTf2] with varying alkyl chain lengths (n = 1, 2 and 8) at the 1 position of the imidazolium ring were studied applying IR…
Electronic-Transport Properties of Al-Cu-Fe Thin Films
R. Haberkern, C. Roth, R. Knoefler +2
Amorphous samples of Al-Cu-Fe were crystallized to the icosahedral phase under the control of electrical conductivity and thermopower at a rather small temperature of T=720 K. A co…
Demonstration of Ramsey-Comb Precision Spectroscopy in Xenon at Vacuum Ultraviolet Wavelengths Produced with High-Harmonic Generation
L. S. Dreissen, C. Roth, E. L. Gründeman +3
The remarkable progress in the field of laser spectroscopy induced by the invention of the frequency-comb laser has enabled many new high-precision tests of fundamental theory and…
Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector
Daya Bay, JUNO collaborations, : +646
To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. Th…
Paving the way for fundamental physics tests with singly-ionized helium
J. J. Krauth, L. S. Dreissen, C. Roth +4
High-precision laser spectroscopy of atomic hydrogen has led to an impressive accuracy in tests of bound-state quantum electrodynamics (QED). At the current level of accuracy many…
Fabrication of High Quality QC Films via the Route of the Amorphous Phase
R. Haberkern, C. Roth, R. Knoefler +2
We discuss the preparation of thin icosahedral films (Al-Cu-Fe and Al-Pd-Re) via the route of the amorphous (a-)phase which in some aspects is a precursor to the icosahedral phase.…
High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation
L. S. Dreissen, C. Roth, E. L. Gründeman +3
High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectrosco…