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Watt-level blue light for precision spectroscopy, laser cooling and trapping of strontium and cadmium atoms
- Source :
- Optics Express Vol. 29, Issue 16, pp. 25462-25476 (2021)
- Publication Year :
- 2021
-
Abstract
- High-power and narrow-linewidth laser light is a vital tool for atomic physics, being used for example in laser cooling and trapping and precision spectroscopy. Here we produce Watt-level laser radiation at 457.49 nm and 460.86 nm of respective relevance for the cooling transitions of cadmium and strontium atoms. This is achieved via the frequency doubling of a kHz-linewidth vertical-external-cavity surface-emitting laser (VECSEL), which is based on a novel gain chip design enabling lasing at > 2 W in the 915-928 nm region. Following an additional doubling stage, spectroscopy of the $^1S_0\to{}^1P_1$ cadmium transition at 228.89 nm is performed on an atomic beam, with all the transitions from all eight natural isotopes observed in a single continuous sweep of more than 4 GHz in the deep ultraviolet. The absolute value of the transition frequency of Cd-114 and the isotope shifts relative to this transition are determined, with values for some of these shifts provided for the first time<br />Comment: 14 pages, 5 figures, 2 tables
- Subjects :
- Physics - Atomic Physics
Physics - Optics
Subjects
Details
- Database :
- arXiv
- Journal :
- Optics Express Vol. 29, Issue 16, pp. 25462-25476 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2104.11924
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1364/OE.429898