Feasibility of coherent xuv spectroscopy on the 1S-2S transition in singly ionized helium

被引：118

作者：

Herrmann, M. ^{[1
]}

Haas, M. ^{[2
]}

Jentschura, U. D. ^{[3
]}

Kottmann, F. ^{[4
]}

Leibfried, D. ^{[5
]}

Saathoff, G. ^{[1
]}

Gohle, C. ^{[1
]}

Ozawa, A. ^{[1
]}

Batteiger, V. ^{[1
]}

Knuenz, S. ^{[1
]}

Kolachevsky, N. ^{[1
,8
]}

Schuessler, H. A. ^{[6
]}

Haensch, T. W. ^{[1
,7
]}

Udem, Th. ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] Univ Hosp Freiburg, Dept Diagnost Radiol, D-79095 Freiburg, Germany

[3] Missouri Univ Sci & Technol, Dept Phys, Rolla, MO 65409 USA

[4] ETH, Inst Teilchenphys, CH-8093 Zurich, Switzerland

[5] NIST, Boulder, CO 80305 USA

[6] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[7] Univ Munich, D-80539 Munich, Germany

[8] PN Lebedev Phys Inst, Moscow 119991, Russia

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

关键词：

atom-photon collisions; helium; Lamb shift; photoexcitation; photoionisation; positive ions; quantum electrodynamics; two-photon spectra; ultraviolet spectra; HYPERFINE-STRUCTURE INTERVAL; ORDER HARMONIC-GENERATION; 2-PHOTON SPECTROSCOPY; MAGNETIC-MOMENT; FREQUENCY COMB; MUONIC HELIUM; OPTICAL-FIELD; GROUND-STATE; HYDROGEN; METROLOGY;

D O I：

10.1103/PhysRevA.79.052505

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The 1S-2S two-photon transition in singly ionized helium is a highly interesting candidate for precision tests of bound-state quantum electrodynamics (QED). With the recent advent of extreme ultraviolet frequency combs, highly coherent quasi-continuous-wave light sources at 61 nm have become available, and precision spectroscopy of this transition now comes into reach for the first time. We discuss quantitatively the feasibility of such an experiment by analyzing excitation and ionization rates, propose an experimental scheme, and explore the potential for QED tests.

引用

页数：15

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