Аннотация
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.
Язык оригинала | английский |
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Страницы (с-по) | 410-414 |
Число страниц | 5 |
Журнал | Quantum Electronics |
Том | 48 |
Номер выпуска | 5 |
DOI | |
Состояние | Опубликовано - 1 янв. 2018 |