Laser frequency stabilisation on narrow resonances of cold magnesium atoms at the 1S03P1 transition

A. N. Goncharov, A. E. Bonert, V. I. Baraulya, M. A. Tropnikov, S. A. Kuznetsov, A. V. Taichenachev, S. N. Bagayev

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3 Citations (Scopus)

Abstract

Experimental studies aimed at developing an optical frequency standard based on ultracold magnesium atoms with a relative uncertainty of Dn/n < 10–16 are performed. The frequency of the clock laser system at a wavelength of 457 nm is stabilised to narrow optical resonances (Ramsey fringes) in time-separated laser fields interacting with cold magnesium atoms localised in a magneto-optical trap (MOT). The frequency stability of the laser system is investigated using a femtosecond comb based on a Ti:sapphire laser. Long-term frequency stability (determined by the Allan function) of ~5 ´ 10–15 at averaging time t = 1000 s is obtained.

Original languageEnglish
Pages (from-to)410-414
Number of pages5
JournalQuantum Electronics
Volume48
Issue number5
DOIs
Publication statusPublished - 1 Jan 2018

Keywords

  • Frequency standards
  • Laser cooling
  • Magnesium
  • frequency standards
  • SPECTROSCOPY
  • MG ATOMS
  • laser cooling
  • magnesium
  • IODINE
  • CLOCKS
  • MAGNETOOPTICAL TRAP
  • NM

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