Аннотация
The possibility is demonstrated of a precision frequency measurement for the 11S0−23S1 forbidden transition (at 62.6 nm) of a helium atom using the stimulated Raman scattering method. The 11S0 singlet state is the ground state of 4He, while the metastable 23S1 state has the lowest energy in the triplet part of the spectrum (4He*). The transition has a very small natural width, which allows us to consider it as a possible reference for creation of a frequency standard in the vacuum ultraviolet region.
Язык оригинала | английский |
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Страницы (с-по) | 285-288 |
Число страниц | 4 |
Журнал | Optics and Spectroscopy (English translation of Optika i Spektroskopiya) |
Том | 124 |
Номер выпуска | 3 |
DOI | |
Состояние | Опубликовано - 1 мар 2018 |