Höfer U, Shumay IL, Reuss C, Thomann U, Wallauer W, Fauster T (1997)
Publication Status: Published
Publication Type: Journal article
Publication year: 1997
Publisher: American Association for the Advancement of Science
Book Volume: 277
Pages Range: 1480-1482
DOI: 10.1126/science.277.5331.1480
Time-resolved two-photon photoemission in combination with the coherent excitation of several quantum states was used to study the ultrafast electron dynamics of image-potential states on metal surfaces, For a (100) surface of copper, the spectroscopy of quantum beats made previously unresolved high-order states (quantum number n greater than or equal to 4) experimentally accessible, By exciting electrons close to the vacuum level, electron wave packets could be created and detected that described the quasi-classical periodic motion of weakly bound electrons, They traveled more than 200 Angstrom away from the surface and oscillated back and forth with a period of 800 femtoseconds.
APA:
Höfer, U., Shumay, I.L., Reuss, C., Thomann, U., Wallauer, W., & Fauster, T. (1997). Time-resolved coherent photoelectron spectroscopy of quantized electronic states on metal surfaces. Science, 277, 1480-1482. https://dx.doi.org/10.1126/science.277.5331.1480
MLA:
Höfer, Ulrich, et al. "Time-resolved coherent photoelectron spectroscopy of quantized electronic states on metal surfaces." Science 277 (1997): 1480-1482.
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