Vacuum space charge effect in laser-based solid-state photoemission spectroscopy

J. Graf; S. Hellmann; C. Jozwiak; C. L. Smallwood; Z. Hussain; R. A. Kaindl; L. Kipp; K. Rossnagel; A. Lanzara

doi:10.1063/1.3273487

Vacuum space charge effect in laser-based solid-state photoemission spectroscopy

J. Graf, S. Hellmann, C. Jozwiak, C. L. Smallwood, Z. Hussain, R. A. Kaindl, L. Kipp, K. Rossnagel, A. Lanzara

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

We report a systematic measurement of the space charge effect observed in the few-picosecond laser pulse regime in laser-based solid-state photoemission spectroscopy experiments. The broadening and the shift of a gold Fermi edge as a function of spot size, laser power, and emission angle are characterized for pulse lengths of 6 ps and 6 eV photon energy. The results are used as a benchmark for an N -body numerical simulation and are compared to different regimes used in photoemission spectroscopy. These results provide an important reference for the design of time- and angle-resolved photoemission spectroscopy setups and next-generation light sources.

Original language	English (US)
Article number	014912
Journal	Journal of Applied Physics
Volume	107
Issue number	1
DOIs	https://doi.org/10.1063/1.3273487
State	Published - 2010
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.3273487

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title = "Vacuum space charge effect in laser-based solid-state photoemission spectroscopy",

abstract = "We report a systematic measurement of the space charge effect observed in the few-picosecond laser pulse regime in laser-based solid-state photoemission spectroscopy experiments. The broadening and the shift of a gold Fermi edge as a function of spot size, laser power, and emission angle are characterized for pulse lengths of 6 ps and 6 eV photon energy. The results are used as a benchmark for an N -body numerical simulation and are compared to different regimes used in photoemission spectroscopy. These results provide an important reference for the design of time- and angle-resolved photoemission spectroscopy setups and next-generation light sources.",

author = "J. Graf and S. Hellmann and C. Jozwiak and Smallwood, {C. L.} and Z. Hussain and Kaindl, {R. A.} and L. Kipp and K. Rossnagel and A. Lanzara",

note = "Funding Information: Laser-ARPES measurements, data analysis and the laser-ARPES chamber setup were supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Parts of the laser-ARPES setup and partial support for J.G. were provided by a MURI program of the Air Force Office of Scientific Research, Grant No. FA9550-04-1-0242.",

year = "2010",

doi = "10.1063/1.3273487",

language = "English (US)",

volume = "107",

journal = "Journal of Applied Physics",

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AU - Graf, J.

AU - Hellmann, S.

AU - Jozwiak, C.

AU - Smallwood, C. L.

AU - Hussain, Z.

AU - Kaindl, R. A.

AU - Kipp, L.

AU - Rossnagel, K.

AU - Lanzara, A.

N1 - Funding Information: Laser-ARPES measurements, data analysis and the laser-ARPES chamber setup were supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Parts of the laser-ARPES setup and partial support for J.G. were provided by a MURI program of the Air Force Office of Scientific Research, Grant No. FA9550-04-1-0242.

PY - 2010

Y1 - 2010

N2 - We report a systematic measurement of the space charge effect observed in the few-picosecond laser pulse regime in laser-based solid-state photoemission spectroscopy experiments. The broadening and the shift of a gold Fermi edge as a function of spot size, laser power, and emission angle are characterized for pulse lengths of 6 ps and 6 eV photon energy. The results are used as a benchmark for an N -body numerical simulation and are compared to different regimes used in photoemission spectroscopy. These results provide an important reference for the design of time- and angle-resolved photoemission spectroscopy setups and next-generation light sources.

AB - We report a systematic measurement of the space charge effect observed in the few-picosecond laser pulse regime in laser-based solid-state photoemission spectroscopy experiments. The broadening and the shift of a gold Fermi edge as a function of spot size, laser power, and emission angle are characterized for pulse lengths of 6 ps and 6 eV photon energy. The results are used as a benchmark for an N -body numerical simulation and are compared to different regimes used in photoemission spectroscopy. These results provide an important reference for the design of time- and angle-resolved photoemission spectroscopy setups and next-generation light sources.

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ER -

Vacuum space charge effect in laser-based solid-state photoemission spectroscopy

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