Resonant coherent three-photon photoemission from Cu(001)

Aimo Winkelmann, Wen-Chin Lin, Cheng Tien Chiang, Francesco Bisio, Hrvoje Petek, Jürgen Kirschner

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We demonstrate the contribution of coherent excitation pathways in three-photon photoemission from Cu(001). We identify separate peaks in the photoelectron spectra as originating from two specific Cud bands that are excited at different k points via the same unoccupied image-potential state. By model calculations we show that our experimental observations impose lower limits on the relevant Cud -hole dephasing time on the order of 10-20 fs. Our findings suggest extensions to future studies in electronic structure mapping with tunable laboratory and free-electron laser sources, exploiting possible multiphoton resonances between occupied bulk and unoccupied surface states.

Original languageEnglish
Article number155128
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number15
DOIs
Publication statusPublished - 2009 Oct 20

Fingerprint

Free electron lasers
Surface states
Photoemission
Photoelectrons
free electron lasers
Electronic structure
photoelectrons
photoelectric emission
Photons
electronic structure
photons
excitation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Resonant coherent three-photon photoemission from Cu(001). / Winkelmann, Aimo; Lin, Wen-Chin; Chiang, Cheng Tien; Bisio, Francesco; Petek, Hrvoje; Kirschner, Jürgen.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 80, No. 15, 155128, 20.10.2009.

Research output: Contribution to journalArticle

Winkelmann, Aimo ; Lin, Wen-Chin ; Chiang, Cheng Tien ; Bisio, Francesco ; Petek, Hrvoje ; Kirschner, Jürgen. / Resonant coherent three-photon photoemission from Cu(001). In: Physical Review B - Condensed Matter and Materials Physics. 2009 ; Vol. 80, No. 15.
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