Title :
Laboratory frequency metrology and the search for a temporal variation of the fine structure constant α on a cosmological time scale
Author :
Salumbides, E. ; Hannemann, S. ; Reinhold, E. ; Labazan, L. ; Wine, S. ; Zinkstok, R. ; Eikema, K. ; Ubachs, W.
Author_Institution :
Vrije Univ., Amsterdam, NY, USA
Abstract :
High-resolution spectroscopy is reported in the paper. Transitions with a frequency comb laser is calibrated. First results on the resonance lines of atomic carbon (at 94.5 nm) and of atomic magnesium (at 202 nm) is also presented. Results include accurate determination of transition isotope shifts.
Keywords :
calibration; carbon; fine structure; frequency measurement; isotope shifts; laser frequency stability; laser transitions; magnesium; C; Mg; atomic carbon; atomic magnesium; fine structure constant; frequency comb laser; frequency metrology; high-resolution spectroscopy; resonance lines; transition isotope shifts; Atom lasers; Atomic beams; Frequency; Laboratories; Laser modes; Laser transitions; Metrology; Spectroscopy; Telescopes; Testing;
Conference_Titel :
Quantum Electronics Conference, 2005. EQEC '05. European
Print_ISBN :
0-7803-8973-5
DOI :
10.1109/EQEC.2005.1567362
