Detection of the clock transition ( 1.14 mu m) in ultra-cold thulium atoms

作者：Golovizin A A^*; Kalganova E S; Sukachev D D; Vishnyakova G A; Semerikov I A; Soshenko V V; Tregubov D O; Akimov A V; Kolachevsky N N; Khabarova K Yu; Sorokin V N

来源：Quantum Electronics, 2015, 45(5): 482-485.

DOI：10.1070/QE2015v045n05ABEH015749

• clock transition
• frequency reference
• laser cooling
• magneto-optical trap
• ultra-cold atoms
• thulium

The magnetic dipole transition between fine structure sublevels of the ground state of thulium atom 4f(13)(F-2(0))6s(2) has been directly excited in a cloud of ultra-cold atoms by a frequency-stabilised laser. This transition at the wavelength lambda = 1.14 mu m is planned to be used as the clock one in an optical frequency reference on laser-cooled thulium atoms.

• 出版日期2015