Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Agner, Josef Anton"'
Autor:
Peper, Michael, Helmrich, Felix, Butscher, Jonas, Agner, Josef Anton, Schmutz, Hansjürg, Merkt, Frédéric, Deiglmayr, Johannes
Publikováno v:
Peper, M. et al. Precision measurement of the ionization energy and quantum defects of $^{39}\mathrm{K}$ I, Phys. Rev. A 100, 012501 (2019)
We present absolute-frequency measurements in ultracold 39K samples of the transitions from the ground state to np Rydberg states. A global nonlinear regression of the np1/2 and np3/2 term values yields an improved wave number of 35009.8139710(22)(sy
Externí odkaz:
http://arxiv.org/abs/1907.02776
Publikováno v:
J. Chem. Phys. 146(1), 014201 (2017)
Frequency-modulation (FM) spectroscopy has been extended to the vacuum-ultraviolet (VUV) range of the electromagnetic spectrum. Coherent VUV laser radiation is produced by resonance-enhanced sum-frequency mixing ($\nu_{\mathrm{VUV}}=2\nu_{\mathrm{UV}
Externí odkaz:
http://arxiv.org/abs/1701.02223
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 49(10), 094006 (2016)
A spectroscopic study of Rydberg states of helium ($n$ = 30 and 45) in magnetic, electric and combined magnetic and electric fields with arbitrary relative orientations of the field vectors is presented. The emphasis is on two special cases where (i)
Externí odkaz:
http://arxiv.org/abs/1701.01638
Autor:
Thiele, Tobias, Filipp, Stefan, Agner, Josef Anton, Schmutz, Hansjürg, Deiglmayr, Johannes, Stammeier, Mathias, Allmendinger, Pitt, Merkt, Frédéric, Wallraff, Andreas
Publikováno v:
Phys. Rev. A 90, 013414 (2014)
Helium atoms in Rydberg states have been manipulated coherently with microwave radiation pulses near a gold surface and near a superconducting NbTiN surface at a temperature of $3 \text{K}$. The experiments were carried out with a skimmed supersonic
Externí odkaz:
http://arxiv.org/abs/1402.7217
Autor:
Cheng, Cunfeng, Hussels, Joël, Bethlem, Hendrick L., Eikema, Kjeld S.E., Salumbides, Edcel J., Ubachs, Wim, Beyer, Maximilian, Hölsch, Nicolas, Agner, Josef-Anton, Merkt, Frédéric, Tao, Long G., Hu, Shui M., Jungen, Christian
Publikováno v:
Physical Review Letters, 121 (1)
Physical Review Letters, 121 (1)
ISSN:0031-9007
ISSN:1079-7114
ISSN:0031-9007
ISSN:1079-7114
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d40eaa1bdd2e003ce3757c8334b6001
Autor:
Seiler Christian, Hogan Stephen D., Schmutz Hansjürg, Andrist Markus, Lambillotte Bruno, Agner Josef Anton, Merkt Frédéric
Publikováno v:
Phys. Rev. Lett.
A supersonic beam of Rydberg hydrogen atoms has been adiabatically deflected by 90 degrees decelerated to zero velocity in less than 25 mu s and loaded into an electric trap. The deflection has allowed the suppression of collisions of the Rydberg ato