298 citations · 914 across the 5 of their papers we have counts for
13 papers
Laser frequency combs for astronomical observations
Tilo Steinmetz, Tobias Wilken, Constanza Araujo-Hauck +9
A direct measurement of the universe's expansion history could be made by observing in real time the evolution of the cosmological redshift of distant objects. However, this would…
Frequency Metrology on single trapped ions in the weak binding limit: The 3s1/2-3p3/2 transition in 24-Mg+
M. Herrmann, V. Batteiger, S. Knünz +3
We demonstrate a method for precision spectroscopy on trapped ions in the limit of unresolved motional sidebands. By sympathetic cooling of a chain of crystallized ions we suppress…
Sub-Hz line width diode lasers by stabilization to vibrationally and thermally compensated ULE Fabry-Perot cavities
J. Alnis, A. Matveev, N. Kolachevsky +3
We achieved a 0.5 Hz optical beat note line width with ~ 0.1 Hz/s frequency drift at 972 nm between two external cavity diode lasers independently stabilized to two vertically moun…
Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
M. Taglieber, A. -C. Voigt, T. Aoki +2
We report on the generation of a quantum degenerate Fermi-Fermi mixture of two different atomic species. The quantum degenerate mixture is realized employing sympathetic cooling of…
Bose-Einstein condensate coupled to a nanomechanical resonator on an atom chip
Philipp Treutlein, David Hunger, Stephan Camerer +2
We theoretically study the coupling of Bose-Einstein condensed atoms to the mechanical oscillations of a nanoscale cantilever with a magnetic tip. This is an experimentally viable…
A stable fiber-based Fabry-Perot cavity
T. Steinmetz, A. Balocchi, Y. Colombe +4
We report the development of a fiber-based, tunable optical cavity with open access. The cavity is of the Fabry-Perot type and is formed with miniature spherical mirrors positioned…