Agustsson, S;
Bianchi, G;
Calabrese, R;
Corradi, L;
Dainelli, A;
Khanbekyan, A;
Marinelli, C;
... Vanella, A; + view all
(2017)
Enhanced Atomic Desorption of 209 and 210 Francium from Organic Coating.
Scientific Reports
, 7
, Article 4207. 10.1038/s41598-017-04397-y.
Preview |
Text
Fr-Desorption.pdf - Accepted Version Download (1MB) | Preview |
Abstract
Controlled atomic desorption from organic Poly-DiMethylSiloxane coating is demonstrated for improving the loading efficiency of 209,210Fr magneto-optical traps. A three times increase in the cold atoms population is obtained with contact-less pulsed light-induced desorption, applied to different isotopes, either bosonic or fermionic, of Francium. A six times increase of 210Fr population is obtained with a desorption mechanism based on direct charge transfer from a triboelectric probe to the adatom- organic coating complex. Our findings provide new insight on the microscopic mechanisms of atomic desorption from organic coatings. Our results, obtained at room temperature so as to preserve ideal vacuum conditions, represent concrete alternatives, independent from the atomic species in use, for high-efficiency laser cooling in critical conditions.
| Type: | Article |
|---|---|
| Title: | Enhanced Atomic Desorption of 209 and 210 Francium from Organic Coating |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41598-017-04397-y |
| Publisher version: | http://doi.org/10.1038/s41598-017-04397-y |
| Language: | English |
| Additional information: | Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | Francium, Laser cooling, Atomic desorption, Organic coating |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1559978 |
Archive Staff Only
 |
View Item |
