Welcome to AG Nörtershäuser

Group photo, taken on Sept. 25th 2020 at the Castle Frankenstein in the Odenwald (south of Darmstadt) by Felix Sommer. f.l.t.r.: Konstantin Mohr, Laura Renth, Tim Ratajczyk, Simon Rausch, Felix Sommer, Max Horst, Patrick Müller, Philipp Bollinger, Tim Lellinger, Jörg Krämer, Wilfried Nörtershäuser, Phillip Imgram

Laser spectroscopic nuclear chart

Our Service to the Community:
An up-to-date nuclear chart with all isotopes that have been investigated by on-line laser spectroscopy, tables and references is provided here …>

Current News

• 2021/01/11

  Simon Rausch has completed his Master Thesis

  

  Simon Rausch has completed his Master Thesis with the presentation „Investigation of Electron Cooling of Highly Charged Ions“. Congratulations from LaserSpHERe! go

• 2021/01/01

  Hardware paper on a remotely controlled iris diaphragm

  

  Our paper on the development of a motor-driven autonomous system for controlling the aperture of a beamline iris aperture has been published in the Journal HardwareX. It was developed during the IREP internship of Daniel Pinheiro Leal at TU Darmstadt. go

• 2020/12/18

  Bernhard Maaß receives Giersch Award

  

  Bernhard Maaß received a “Giersch Award for an Outstanding Doctoral Thesis” for his Dissertation “Laser Spectroscopy of the Boron Isotopic Chain”. Congratulations! go

• 2020/12/10

  Solution to the field-shift puzzle in singly-charged calcium

  

  Our measurements of the transition frequencies in the singly-charged stable calcium isotopes have been published in Physical Review Research. With these, the discrepancy between experiment and theory existing in the field-shift ratio of two electric dipole transitions was solved. go

• 2020/11/30

  New DAQ System employed for the Spectroscopy of Germanium Isotopes at COLLAPS

  

  Our measurements of nuclear moments of the Germanium isotopes Ge-69,71,73 have been published today in Physical Review C. The new data acquisition system TILDA was used and demonstrated its versatility by identifying a molecular component of the beam. go

• 2020/11/26

  Philipp Bollinger has completed his Master Thesis

  

  Philipp Bollinger has completed his Master Thesis with the presentation „A compact collinear laser spectroscopy setup for students hands-on experience“. Congratulations! go

• 2020/11/10

  Julian Palmes has completed his Bachelor Thesis

  

  Julian Palmes has completed his Bachelor Thesis with the presentation „Doppler-free frequency modulated absorption spectroscopy of Iodine lines at 705nm“. Congratulations! go

• 2020/11/09

  Nuclear Moments of Sn-133 published

  

  Measurements of the magnetic dipole and electric quadrupole moment of the exotic nucleus ¹³³Sn by high-resolution laser spectroscopy at ISOLDE/CERN have been published in Physical Review C as a Rapid Communication. These, in combination with state-of-the-art shell-model calculations, demonstrate the doubly-magic character of its immediate neighbor ¹³²Sn. go

• 2020/10/06

  First collinear laser spectroscopy with an LMIS Source

  

  Our Paper on frequency and hyperfine measurements in the stable indium isotopes has appeared in the journal Physical Review A. It reports on the first application of a liquid metal ion source (LMIS) for collinear laser spectroscopy. go

• 2020/08/19

  Eric Planz has completed his Master Thesis

  Eric Planz has successfully completed his MasterThesis with the presentation „Constructing a Precision Measurement of the Fine-Structure Constant Using Atom Interferometry“. This experimental work was carried out in the group of Holger Müller at Berkeley. Congratulations! go