10 citations · 29 across the 6 of their papers we have counts for
6 papers
Extreme-ultraviolet spectroscopy using quantum logic: a feasibility study for the 1S-2S transition in singly-ionized helium
A. Martínez de Velasco, V. P. J. Barbé, E. L. Gründeman +11
Extreme-ultraviolet (XUV) spectroscopy represents an important new direction in precision physics, with potential applications ranging from the metrology of fundamental constants t…
Laser Excitation of the 1S-2S Transition in Singly-Ionized Helium
Elmer L. Gründeman, Vincent Barbé, Andrés Martínez de Velasco +6
Precision laser spectroscopy in the extreme ultraviolet of the 1S-2S two-photon transition in singly-ionized helium is a promising route for tests of fundamental physics. We demons…
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…
Experimental Demonstration of a Terahertz Frequency Reference based on Coherent Population Trapping
Mathieu Collombon, Cyril Chatou, Gaétan Hagel +4
A novel protocol of interrogation based on coherent population trapping in an N-level scheme atomic system leads to dark resonances involving three different photons. An ensemble o…
Phase transfer between three visible lasers for coherent population trapping
Mathieu Collombon, Gaetan Hagel, Cyril Chatou +5
Stringent conditions on the phase relation of multiple photons are a prerequisite for novel protocols of high-resolution coherent spectroscopy. In a recent experiment we have imple…
Noise characterization of an Optical Frequency Comb using Offline Cross-Correlation
Ramin Khayatzadeh, Mathieu Collombon, Didier Guyomarc'h +6
Using an offline cross-correlation technique, we have analyzed the noise behavior of a new type of optical frequency comb (OFC), which is carrier envelope offset (CEO) free by conf…