Zobrazeno 1 - 10
of 40
pro vyhledávání: '"G. Haeffler"'
Publikováno v:
Physical Review A. 59:3655-3659
We have used a collinear laser-ion beam apparatus to investigate the partial cross section for the photodetachment of ${\mathrm{Na}}^{\ensuremath{-}}$ via the $\mathrm{Na}{(4s)+e}^{\ensuremath{-}}(\ensuremath{\epsilon}p)$ channel. The measured cross-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5486843cac7754a96069f2eeb016339f
https://doi.org/10.1103/physreva.59.3655
https://doi.org/10.1103/physreva.59.3655
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 31:2549-2557
The photodetachment cross section of He^- has been measured in the photon energy range 2.9 eV to 3.3 eV in order to investigate doubly excited states. Measurements were made channel specific by selectively detecting the residual He atoms left in a pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc3bc27c240f32cd2b2d7a73ace5eb76
https://doi.org/10.1088/0953-4075/31/11/016
https://doi.org/10.1088/0953-4075/31/11/016
Publikováno v:
Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 42:263-266
The energies of the As− fine structure components 4p43P1 and 4p43P0 have been determined relative to the 4p43P2 ground state by using photodetachment electron spectroscopy. Fine structure splittings of ΔE(3P1 − 3P2) = 125(3) meV and ΔE(3P0 −
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d83fe117cabd7bb2885cce21926c2765
https://doi.org/10.1007/s004600050365
https://doi.org/10.1007/s004600050365
Autor:
Igor Yu. Kiyan, Christopher W. Ingram, G. Haeffler, U. Berzinsh, A. E. Klinkmüller, Dag Hanstorp, D. J. Pegg, James R. Peterson
Publikováno v:
Physical Review A. 56:2788-2791
A Feshbach resonance associated with the 1s3s4s{sup 4}S state of He{sup {minus}} has been observed in the He(1s2s{sup 3}S)thinsp+thinspe{sup {minus}}({epsilon}s) partial photodetachment cross section. The residual He(1s2s{sup 3}S) atoms were resonant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85212b031b21b45325063980323c619e
https://doi.org/10.1103/physreva.56.2788
https://doi.org/10.1103/physreva.56.2788
Publikováno v:
Physical Review Letters. 79:2018-2021
We report the first observation of ionization of Rydberg atoms by subpicosecond, circularly polarized THz radiation. The field amplitude in these pulses is non-negligible for only one-quarter of an optical cycle. The experiment is performed in the sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cb9ae02abfe4c538709c5e7e21ae456
https://doi.org/10.1103/physrevlett.79.2018
https://doi.org/10.1103/physrevlett.79.2018
Publikováno v:
Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 38:211-214
The electron affinity of tellurium has been determined to 1.970 876(7) eV. The threshold for photodetachment of Te^-(^{2} P_{3/2}) forming neutral Te in the ground state was investigated by measuring the total photodetachment cross section using a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fddc9cf0d04e04e043e41604ffd06b5
https://doi.org/10.1007/s004600050085
https://doi.org/10.1007/s004600050085
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:3017-3022
Measurements of the photodetachment cross section of have been performed in the vicinity of the threshold, with photon energies ranging from 5.23 - 6.04 eV. The experimental cross section is nearly constant throughout this energy region, in marked co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60cd5632b15eab902291c3c9b9ee786
https://doi.org/10.1088/0953-4075/29/14/014
https://doi.org/10.1088/0953-4075/29/14/014
Publikováno v:
Physical Review A. 53:4127-4131
We have investigated the threshold of photodetachment of Li^- leading to the formation of the residual Li atom in the $2p ^2P$ state. The excited residual atom was selectively photoionized via an intermediate Rydberg state and the resulting Li^+ ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::470f7040bce401e4601947a16f0aedcf
https://doi.org/10.1103/physreva.53.4127
https://doi.org/10.1103/physreva.53.4127
Autor:
D. J. Pegg, Eva Lindroth, U. Berzinsh, U. Ljungblad, G. Haeffler, A. E. Klinkmüller, Dag Hanstorp
Publikováno v:
Physical Review Letters. 74:4795-4798
We report on the first observation of resonance structure in the total cross section for the photodetachment of ${\mathrm{Li}}^{\ensuremath{-}}$. The structure arises from the autodetaching decay of doubly excited ${1P}^{o}$ states of ${\mathrm{Li}}^
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7408813d71ae7f78fa59ec136ccce2e7
https://doi.org/10.1103/physrevlett.74.4795
https://doi.org/10.1103/physrevlett.74.4795
Publikováno v:
Physical Review A. 57:2216-2218
We report on a measurement of the photodetachment of the Li{sup {minus}} ion via the Li(4s)+e{sup {minus}}({epsilon}p) channel. The partial photodetachment cross section below the Li(4p) threshold is dominated by resonance structure. The resonance sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f6d6babca06fd4492997e522466faac
https://doi.org/10.1103/physreva.57.2216
https://doi.org/10.1103/physreva.57.2216