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Volumn 318, Issue 5854, 2007, Pages 1287-1291

Time-resolved investigation of coherently controlled electric currents at a metal surface

Author keywords

[No Author keywords available]

Indexed keywords

METAL;

EID: 36448965181     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1146764     Document Type: Article
Times cited : (145)

References (33)
  • 8
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    • U. Höfer et al., Science 277, 1480 (1997).
    • (1997) Science , vol.277 , pp. 1480
    • Höfer, U.1
  • 10
    • 36448997867 scopus 로고    scopus 로고
    • The experiments were performed at room temperature in an ultrahigh-vacuum chamber with a base pressure of 6 × 10-11 mbar. The Cu(100) sample was prepared by standard sputtering and annealing procedures. Surface cleanliness and order were verified by x-ray photoemission spectroscopy and low-energy electron diffraction. The optical setup to generate phase-locked ultrashort pump laser pulses at frequencies ωa and ωa/2 is described in detail in (31, Their wavelength varied between 270 and 285 nm (540 and 570 nm, the pulse durations were 90 and 60 fs. The time-delayed probe pulse for photoemission (ωb) had a wavelength of 800 nm and a pulse duration of 70 fs. For the measurements that did not require a time delay between pump and probe pulses (Figs. 1 to 3, the photoelectrons emitted by the half-gap pulses were recorded i.e, ωb, ωa/2, A hemispherical electron analyzer equipped
    • a/2). A hemispherical electron analyzer equipped with an angle-resolved lens mode and a two-dimensional image-type detector (Specs Phoibos-150) served as the electron spectrometer (17).
  • 15
    • 0032498148 scopus 로고    scopus 로고
    • N. H. Ge et al., Science 279, 202 (1998).
    • (1998) Science , vol.279 , pp. 202
    • Ge, N.H.1
  • 18
    • 36448959865 scopus 로고    scopus 로고
    • 0 is unknown for the position of the sample surface. It is fixed here by setting ΔΦ = 0 for a maximum of the total photoemission intensity.
    • 0 is unknown for the position of the sample surface. It is fixed here by setting ΔΦ = 0 for a maximum of the total photoemission intensity.
  • 19
    • 36448969055 scopus 로고    scopus 로고
    • ∥ ≈ 1 nA per surface atom.
    • ∥ ≈ 1 nA per surface atom.
  • 23
    • 0000336325 scopus 로고
    • H.-E. Ponath, G. I. Stegeman, Eds, Elsevier, Amsterdam
    • T. F. Heinz, in Nonlinear Surface Electromagnetic Phenomena, H.-E. Ponath, G. I. Stegeman, Eds. (Elsevier, Amsterdam, 1991), pp. 353-416.
    • (1991) Nonlinear Surface Electromagnetic Phenomena , pp. 353-416
    • Heinz, T.F.1
  • 26
    • 36448929896 scopus 로고    scopus 로고
    • See supporting material on Science Online.
    • See supporting material on Science Online.
  • 33
    • 36448997488 scopus 로고    scopus 로고
    • Supported by Deutsche Forschungsgemeinschaft grant HO 2295/3 and by the Center for Optodynamics, Marburg, Germany.
    • Supported by Deutsche Forschungsgemeinschaft grant HO 2295/3 and by the Center for Optodynamics, Marburg, Germany.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.