By Topic

Towards an indium single-ion optical clock

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Peik, E. ; Sektion Phys., Ludwig-Maximilians-Univ., Munchen, Germany ; Abel, J. ; Becker, T. ; Fries, M.
more authors

We are investigating the 5s21S0→5s5p 3P0 transition of a single trapped laser-cooled 115In+ ion as a possible optical frequency standard. This line with a natural linewidth of only 1.1 Hz, corresponding to a Q factor of 1.2·1015, is highly immune to systematic frequency shifts due to external perturbations. For sideband laser cooling and fluorescence detection of the indium ion the 5s21S0→5s5p3P1 transition at 230.6 nm is excited. Temperatures below 100 μK and a mean vibrational quantum number ⟨n⟩<1 of the ion in the trap have been reached. For the clock transition a resolution of 3·10-13 (linewidth 350 Hz) has been obtained so far, limited by the laser linewidth. The absolute frequency of the 1 S03P0 transition was measured by making a link to known reference frequencies of molecular iodine and methane using a frequency chain

Published in:

Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European  (Volume:2 )

Date of Conference: