Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Jan-Hendrik Oelmann"'
Autor:
J. Nauta, J. R. Crespo López-Urrutia, Jan-Hendrik Oelmann, Thomas Pfeifer, P. Knauer, Alexander Ackermann, I. S. Muhammad, R. Pappenberger, A. Borodin
Publikováno v:
Optics Express
We have developed an extreme ultraviolet (XUV) frequency comb for performing ultra-high precision spectroscopy on the many XUV transitions found in highly charged ions (HCI). Femtosecond pulses from a 100 MHz phase-stabilized near-infrared frequency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a78eb0d6e96932f23b63d82424f407e
https://hdl.handle.net/21.11116/0000-0007-DB18-821.11116/0000-0007-DB1A-6
https://hdl.handle.net/21.11116/0000-0007-DB18-821.11116/0000-0007-DB1A-6
Autor:
Thomas Pfeifer, Jan-Hendrik Oelmann, P. Knauer, J. Nauta, J. R. Crespo López-Urrutia, I. S. Muhammad, Alexander Ackermann, R. Pappenberger, H. Ledwa, A. Borodin
Publikováno v:
Optics letters. 45(8)
We raise the power from a commercial 10 W frequency comb inside an enhancement cavity and perform multi-photon ionization of gas-phase atoms at 100 MHz for the first time, to the best of our knowledge. An intra-cavity velocity-map-imaging setup colle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30b685f815f829fd074c92fab03d00ba
https://pubmed.ncbi.nlm.nih.gov/32287180
https://pubmed.ncbi.nlm.nih.gov/32287180
Autor:
Thomas Pfeifer, P. Micke, Christian Warnecke, Lisa Schmöger, S. A. King, J. R. Crespo López-Urrutia, M. Schwarz, T. Leopold, Jan-Hendrik Oelmann, L. J. Spieß, Elwin Dijck, D. Liebert, Michael Rosner, Steffen Kühn, Alexander Graf, J. Stark, Sandra Bogen, J. Nauta, Shiyong Chen, Piet O. Schmidt
Publikováno v:
Review of Scientific Instruments
We present a novel ultrastable superconducting radio-frequency (RF) ion trap realized as a combination of an RF cavity and a linear Paul trap. Its RF quadrupole mode at 34.52 MHz reaches a quality factor of $Q\approx2.3\times 10^5$ at a temperature o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83f1f4b9e0b7b3026c696ce343424aa7
https://doi.org/10.1063/5.0046569
https://doi.org/10.1063/5.0046569
Autor:
Thomas Pfeifer, Alexander Ackermann, J. Nauta, José R. Crespo López-Urrutia, Ronja Pappenberger, Steffen Kühn, Patrick Knauer, Jan-Hendrik Oelmann, Julian Stark
Publikováno v:
Scopus-Elsevier
Highly charged ions (HCI) have a few tightly bound electrons and many interesting properties for probing fundamental physics and developing new frequency standards [1,2]. Many optical transitions of HCI are located in the extreme ultraviolet (XUV) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b77b184645063421bbf48bfc89d1f778
https://doi.org/10.1109/cleoe-eqec.2019.8872682
https://doi.org/10.1109/cleoe-eqec.2019.8872682