Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 189-194 |
| Seitenumfang | 6 |
| Fachzeitschrift | Hyperfine Interactions |
| Jahrgang | 214 |
| Ausgabenummer | 1-3 |
| Publikationsstatus | Veröffentlicht - 5 Feb. 2013 |
Abstract
Narrow optical transitions in highly charged ions (HCIs) are of particular interest for metrology and fundamental physics, exploiting the high sensitivity of HCIs to new physics. The highest sensitivity for a changing fine structure constant ever predicted for a stable atomic system is found in Ir17+. However, laser spectroscopy of HCIs is hindered by the large (~ 106 K) temperatures at which they are produced and trapped. An unprecedented improvement in such laser spectroscopy can be obtained when HCIs are cooled down to the mK range in a linear Paul trap. We have developed a cryogenic linear Paul trap in which HCIs will be sympathetically cooled by 9Be+ ions. Optimized optical access for laser light is provided while maintaining excellent UHV conditions. The Paul trap will be connected to an electron beam ion trap (EBIT) which is able to produce a wide range of HCIs. This EBIT will also provide the first experimental input needed for the determination of the transition energies in Ir17+, enabling further laser-spectroscopic investigations of this promising HCI.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Physik und Astronomie (insg.)
- Kern- und Hochenergiephysik
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
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in: Hyperfine Interactions, Jahrgang 214, Nr. 1-3, 05.02.2013, S. 189-194.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Cold highly charged ions in a cryogenic Paul trap
AU - Versolato, Oscar O.
AU - Schwarz, Maria
AU - Windberger, A.
AU - Ullrich, J.
AU - Schmidt, Piet Oliver
AU - Drewsen, Michael
AU - Crespo López-Urrutia, José R.
PY - 2013/2/5
Y1 - 2013/2/5
N2 - Narrow optical transitions in highly charged ions (HCIs) are of particular interest for metrology and fundamental physics, exploiting the high sensitivity of HCIs to new physics. The highest sensitivity for a changing fine structure constant ever predicted for a stable atomic system is found in Ir17+. However, laser spectroscopy of HCIs is hindered by the large (~ 106 K) temperatures at which they are produced and trapped. An unprecedented improvement in such laser spectroscopy can be obtained when HCIs are cooled down to the mK range in a linear Paul trap. We have developed a cryogenic linear Paul trap in which HCIs will be sympathetically cooled by 9Be+ ions. Optimized optical access for laser light is provided while maintaining excellent UHV conditions. The Paul trap will be connected to an electron beam ion trap (EBIT) which is able to produce a wide range of HCIs. This EBIT will also provide the first experimental input needed for the determination of the transition energies in Ir17+, enabling further laser-spectroscopic investigations of this promising HCI.
AB - Narrow optical transitions in highly charged ions (HCIs) are of particular interest for metrology and fundamental physics, exploiting the high sensitivity of HCIs to new physics. The highest sensitivity for a changing fine structure constant ever predicted for a stable atomic system is found in Ir17+. However, laser spectroscopy of HCIs is hindered by the large (~ 106 K) temperatures at which they are produced and trapped. An unprecedented improvement in such laser spectroscopy can be obtained when HCIs are cooled down to the mK range in a linear Paul trap. We have developed a cryogenic linear Paul trap in which HCIs will be sympathetically cooled by 9Be+ ions. Optimized optical access for laser light is provided while maintaining excellent UHV conditions. The Paul trap will be connected to an electron beam ion trap (EBIT) which is able to produce a wide range of HCIs. This EBIT will also provide the first experimental input needed for the determination of the transition energies in Ir17+, enabling further laser-spectroscopic investigations of this promising HCI.
KW - Alpha time variation
KW - Cryogenic Paul trap
KW - EBIT
KW - Highly charged ions
UR - http://www.scopus.com/inward/record.url?scp=84875404373&partnerID=8YFLogxK
U2 - 10.1007/s10751-013-0806-9
DO - 10.1007/s10751-013-0806-9
M3 - Article
AN - SCOPUS:84875404373
VL - 214
SP - 189
EP - 194
JO - Hyperfine Interactions
JF - Hyperfine Interactions
SN - 0304-3843
IS - 1-3
ER -