Publications
SPECTRAP
S. Schmidt, Ch. Geppert, Z. Andelkovic.
Laser spectroscopy methods for probing highly charged ions at GSI.
Hyperfine Interactions 227, 29 (2014)
dx.doi.org/10.1007/s10751-014-1048-1
Z. Andelkovic, R. Cazan, W. Nörtershäuser, S. Bharadia, D. M. Segal, R.C. Thompson, R. Jöhren, J. Vollbrecht, V. Hannen, M. Vogel.
Laser cooling of externally produced Mg ions in a Penning trap for sympathetic cooling of highly charged ions.
Physical Review A 87, 033423 (2013)
dx.doi.org/10.1103/PhysRevA.87.033423
arxiv.org/abs/1211.2106
T. Murböck, S. Albrecht, Z. Andelkovic, R. Cazan, V. Hannen, R. Jöhren, J. Vollbrecht, S. Schmidt, D. Segal, R. Thompson, M. Vogel, C. Weinheimer, W. Nörtershäuser and G. Birkl.
SpecTrap: precision spectroscopy of highly charged ions—status and prospects.
Physica Scripta T156, 014096 (2013)
dx.doi.org/10.1088/0031-8949/2013/T156/014096
R. Jöhren, R. Berendes, W. Buglak, D. Hampf, V. Hannen, J. Mader, W. Nörtershäuser, R. Sánchez, and C. Weinheimer.
APDs as single-photon detectors for visible and near-infrared wavelengths down to Hz rates.
Journal of Instrumentation 7, 02015 (2012)
dx.doi.org/10.1088/1748-0221/7/02/P02015
S. Bharadia, M. Vogel, D. Segal, R. Thompson.
Dynamics of laser-cooled Ca+ ions in a Penning trap with a rotating wall.
Appl. Phys. B. 107, 1105 (2012).
dx.doi.org/10.1007/s00340-012-4871-6
S. Albrecht, A. S., C. Siegel, N. Herschbach, and G. Birkl.
A Laser System for the Spectroscopy of Highly-Charged Bismuth Ions.
Applied Physics B - Lasers and Optics, 107, 1069 (2011).
dx.doi.org/10.1007/s00340-011-4732-8
M. Vogel, W. Quint, and W. Nörtershäuser.
Trapped Ion Oscillation Frequencies as Sensors for Spectroscopy.
Sensors, 10, 2169 (2010).
R. Cazan, C. Geppert, W. Nörtershäuser, and R. Sánchez.
Towards sympathetic cooling of trapped ions with laser-cooled Mg+ ions for mass spectrometry and laser spectroscopy.
Hyperfine Interactions 196, 177 (2010).
dx.doi.org/10.1007/s10751-009-0144-0
Z. Andjelkovic, S. Bharadia, B. Sommer, M. Vogel, and W. Nörtershäuser.
Towards high precision in-trap laser spectroscopy of highly charged ions.
Hyperfine Interactions 196, 81 (2010).
dx.doi.org/10.1007/s10751-009-0155-x
D.F.A. Winters, M. Vogel, D.M. Segal, R.C. Thompson, and W. Nörtershäuser.
Laser spectroscopy of hyperfine structure in highly charged ions: a test of QED at high fields.
Canadian Journal of Physics 85, 403 (2007).
Spectroscopy at the ESR
Benjamin Botermann, Dennis Bing, Christopher Geppert, Gerald Gwinner, Theodor W. Hänsch, Gerhard Huber, Sergei Karpuk, Andreas Krieger, Thomas Kühl, Wilfried Nörtershäuser, Christian Novotny, Sascha Reinhardt, Rodolfo Sánchez, Dirk Schwalm, Thomas Stöhlker Andreas Wolf and Guido Saathoff
Test of Time Dilation using Stored Li+ Ions as Clocks at Relativistic Speed
Submitted to Physical Review Letters (2014).
M. Lochmann, R. Jöhren, Ch. Geppert, Z. Andelkovic, D. Anielski, B. Botermann, M. Bussmann, A. Dax, N. Frömmgen, M. Hammen, V. Hannen, Th. Kühl, Y. A. Litvinov, R. López-Coto, Th. Stöhlker, R. C. Thompson,
J. Vollbrecht, A. Volotka, Ch. Weinheimer, W. Wen, E. Will, D. Winters, R. Sánchez, and W. Nörtershäuser.
First observation of the hyperfine transition in lithium-like Bismuth 209Bi80+: Towards a test of QED in strong magnetic fields.
Submitted to Physical Review Letters (2014).
arXiv:1401.8224.
V. Hannen, D. Anielski, C. Geppert, R. Jöhren, T. Kühl, M. Lochmann, R. López-Coto, W. Nörtershäuser, H.-W. Ortjohann, R. Sánchez, J. Vollbrecht, C. Weinheimer, D.F.A. Winters.
Detection system for forward emitted photons at the Experimental Storage Ring at GSI.
Journal of Instrumentation 8, P09018 (2013).
dx.doi.org/10.1088/1748-0221/8/09/P09018
arXiv:1305.4069.
W. Nörtershäuser, M. Lochmann, R. Jöhren, C. Geppert, Z Andelkovic, D. Anielski, B. Botermann, M. Bussmann, A. Dax, N. Frömmgen, M. Hammen, V. Hannen, T. Kühl, Y. A. Litvinov, J. Volbrecht, T. Stöhlker, R. C. Thompson, C. Weinheimer, W. Wen, E. Will, D. Winters and R. Sánchez.
First observation of the ground-state hyperfine transition in 209Bi80+.
Physica Scripta T 156, 014016 (2013).
dx.doi.org/10.1088/0031-8949/2013/T156/014016
T. Stöhlker, Y. A Litvinov, V. Bagnoud, U. Bechstedt, C. Dimopoulou, A. Dolinskii, C. Geppert, S. Hagmann, T. Katayama, T. Kühl, R. Maier, W. Nörtershäuser, D. Prasuhn, R. Schuch, M. Steck and H. Stockhorst.
SPARC experiments at the high-energy storage ring.
Physica Scripta T 156, 014085 (2013).
dx.doi.org/10.1088/0031-8949/2013/T156/014085
G. Gwinner, B. Botermann, C. Geppert, G. Huber, S. Karpuk, A. Krieger, W. Nörtershäuser, C. Novotny, T. Kühl, R. Sanchez, T. Stöhlker, D. Bing, D. Schwalm, A. Wolf, T.W. Hänsch, S. Reinhardt, G. Saathoff
Modern Ives-Stilwell Experiments At Storage Rings: Large Boosts Meet High Precision.
CPT and Lorentz Symmetry - Proceedings of the Sixth Meeting, 180 (2013)
dx.doi.org/10.1142/9789814566438_0045
arXiv:1309.0549
W.Q. Wen, M. Lochmann, X. Ma, M. Bussmann, D.F.A. Winters, W. Nörtershäuser, B. Botermann, C. Geppert, N. Frömmgen, M. Hammen, V. Hannen, R. Jöhren, Th. Kühl, Yu. A. Litvinov, R. Sánchez, Th. Stöhlker, J. Vollbrecht, C. Weinheimer, C. Dimopoulou, F. Nolden, M. Steck.
Optical measurement of the longitudinal ion distribution of bunched ion beams in the ESR.
Nuclear Instruments and Methods in Physics Research A 711, 90 (2013). dx.doi.org/10.1016/j.nima.2013.01.058
D.F.A. Winters, T. Kühl, D.H. Schneider, P. Indelicato, R. Reuschl, R. Schuch, E. Lindroth, and T. Stöhlker.
Laser spectroscopy of the (1s2 2s 2p) 3P0 - 3P1 level splitting in Be-like krypton.
Physica Scripta T144, 014013 (2011).
dx.doi.org/10.1088/0031-8949/2011/T144/014013
B. Botermann, C. Novotny, D. Bing, C. Geppert, G. Gwinner, T.W. Hänsch, G. Huber, S. Karpuk, T. Kühl, W. Nörtershäuser, S. Reinhardt, G. Saathoff, D. Schwalm, T. Stöhlker, and A. Wolf.
Preparatory measurements for a test of time dilation in the ESR.
Canandian Journal of Physics 89, 85 (2011).
G. Saathoff, S. Reinhardt, B. Bernhardt, R. Holzwarth, T. Udem, T.W. Hänsch, D. Bing, D. Schwalm, A. Wolf, B. Botermann, S. Karpuk, C. Novotny, W. Nörtershäuser G. Huber, C. Geppert, T. Kühl T. Stöhlker, G. Gwinner.
Testing Time Dilation on Fast Ion Beams.
Journal of Physics: Conference Series 312, 102014 (2011).
dx.doi.org/10.1088/1742-6596/312/10/102014
W. Nörtershäuser
Laser spectroscopy for QED tests in highly charged ions.
Hyperfine Interactions 199, 131 (2011).
dx.doi.org/10.1007/s10751-011-0315-7
C. Novotny, B. Bernhardt, D. Bing, G. Ewald, C. Geppert, G. Gwinner, G. Huber, S. Karpuk, H.J. Kluge, T. Kühl, W. Nörtershäuser, S. Reinhardt, G. Saathoff, D. Schwalm, T. Stöhlker, and A. Wolf.
Towards a precision test of time dilation at high velocity.
Canadian Journal of Physics 87, 749 (2009).
C. Novotny, G. Huber, S. Karpuk, S. Reinhardt, D. Bing, D. Schwalm, A. Wolf, B. Bernhardt, T.W. Hänsch, R. Holzwarth, G. Saathoff, T. Udem, W. Nörtershäuser, G. Ewald, C. Geppert, T. Kühl, T. Stöhlker, and G. Gwinner.
Sub-Doppler laser spectroscopy on relativistic beams and tests of Lorentz invariance
Physical Review A 80, 022107 (2009).
dx.doi.org/10.1103/PhysRevA.80.022107
S. Reinhardt, G. Saathoff, T. W. Hänsch, C. Novotny, G. Huber, S. Karpuk, W. Nörtershäuser, D. Bing, D. Schwalm, A. Wolf, B. Botermann, C. Geppert, T. Kühl, T. Stöhlker, G. Gwinner.
Laser Spectroscopy on Relativistic Ion Beams.
Laser Spectroscopy: Proceeding of the XIX International Conference, 297 (2009).
dx.doi.org/10.1142/9789814282345_0027
C. Novotny, B. Bernhardt, G. Ewald, C. Geppert, G. Gwinner, T. Hänsch, R. Holzwarth, G. Huber, S. Karpuk, H.-J. Kluge, T. Kühl, W. Nörtershäuser, S. Reinhardt, G. Saathoff, D. Schwalm, T. Udem, and A. Wolf. Experimental test of special relativity by laser spectroscopy.
Hyperfine Interactions 171, 57 (2006).
dx.doi.org/10.1007/s10751-006-9500-5
Dissertationen
Matthias Lochmann
Laserspektroskopie der Grundzustands-Hyperfeinstruktur des lithiumähnlichen 209Bi80+
Dissertation 2013, Johannes Gutenberg-Universität Mainz.
ubm.opus.hbz-nrw.de/volltexte/2013/3492/
Raphael Jöhren
Spectroscopy of the hyperfine transition in lithium-like bismuth at the ESR at GSI and an APD-based single-photon detector for laser spectroscopy on highly charged ions.
Dissertation 2013, Westfälische Wilhelms-Universität Münster.
repositorium.uni-muenster.de/document/miami/35e099f2-4f93-4a48-a729-1cf9521b4072/diss_joehren.pdf
Benjamin Botermann
Test der Speziellen Relativitätstheorie mittels Laserspektroskopie an relativistischen 7Li+-Ionen am ESR. Dissertation 2012, Johannes Gutenberg-Universität Mainz.
ubm.opus.hbz-nrw.de/volltexte/2012/3266/
Zoran Andelkovic
Setup of a Penning trap for precision laser spectroscopy at HITRAP.
Dissertation 2012, Johannes Gutenberg-Universität Mainz.
ubm.opus.hbz-nrw.de/volltexte/2012/3132/
Radu Cazan
Preparation of Cold Mg+ Ion Clouds for Sympathetic Cooling of Highly Charged Ions at SPECTRAP. Dissertation 2012, Johannes Gutenberg-Universität Mainz.
ubm.opus.hbz-nrw.de/volltexte/2012/3073/
Shailen Bharadia
Towards Laser Spectroscopy of Highly Charged Ions: Dynamics of 40Ca+ Ions in a Penning Trap.
Dissertation 2011, Imperial College London.
workspace.imperial.ac.uk/iontrap/Public/ShailenBharadia.pdf
Christian Novotny
Towards a new test of time dilation: Laser spectroscopy on lithium ions stored at a velocity of 33.8 % of the speed of light.
Dissertation 2008, Johannes Gutenberg-Universität Mainz.
ubm.opus.hbz-nrw.de/volltexte/2008/1834/