Tinsley, Jonathan N 
ORCID: 0000-0002-4925-9350, Bandarupally, Satvika, Penttinen, Jussi-Pekka, Manzoor, Shamaila, Ranta, Sanna, Salvi, Leonardo, Guina, Mircea and Poli, Nicola
(2021)
Watt-level blue light for precision spectroscopy, laser cooling and trapping of strontium and cadmium atoms.
OPTICS EXPRESS, 29 (16).
pp. 25462-25476.
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 457.75 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 <sup>1</sup>S<sub>0</sub> → <sup>1</sup>P<sub>1</sub> cadmium transition at 228.87 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 <sup>114</sup>Cd and the isotope shifts relative to this transition are determined, with values for some of these shifts provided for the first time.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 04 Oct 2023 14:36 |
| Last Modified: | 04 Oct 2023 14:37 |
| DOI: | 10.1364/OE.429898 |
| Open Access URL: | https://doi.org/10.1364/OE.429898 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3173419 |
Dimensions
Dimensions
