Femtosecond-laser photoemission spectroscopy for ultrafast photovoltage dynamics: limitations and possibilities

2019 ◽  
Author(s):  
Y. Hazama ◽  
Y. Ishida ◽  
L. Zhu ◽  
C. Kim ◽  
S. Shin ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Photoemission Spectroscopy ◽  
Laser Photoemission

Femtosecond-Laser Photoemission Spectroscopy of Mo(100) Covered by Ultrathin MgO(100) Films of Variable Thickness

2009 ◽  
Vol 113 (23) ◽  
pp. 10264-10268 ◽  
Author(s):  
Mihai E. Vaida ◽  
Tobias Gleitsmann ◽  
Robert Tchitnga ◽  
Thorsten M. Bernhardt
Keyword(s):  
Femtosecond Laser ◽  
Variable Thickness ◽  
Photoemission Spectroscopy ◽  
Laser Photoemission

scholarly journals Ultrafast electron transport in layered semiconductors studied with femtosecond-laser photoemission

1997 ◽  
Vol 56 (19) ◽  
pp. 12092-12095 ◽  
Author(s):  
Armin Rettenberger ◽  
Paul Leiderer ◽  
Matthias Probst ◽  
Richard Haight
Keyword(s):  
Electron Transport ◽  
Femtosecond Laser ◽  
Layered Semiconductors ◽  
Laser Photoemission

scholarly journals Work function seen with sub-meV precision through laser photoemission

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Y. Ishida ◽  
J. K. Jung ◽  
M. S. Kim ◽  
J. Kwon ◽  
Y. S. Kim ◽  
...  
Keyword(s):  
Work Function ◽  
Electron Emission ◽  
Photoemission Spectroscopy ◽  
Significant Digit ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Surface Normal ◽  
Laser Photoemission ◽  
Dirac Distribution

Abstract Electron emission can be utilised to measure the work function of the surface. However, the number of significant digits in the values obtained through thermionic-, field- and photo-emission techniques is typically just two or three. Here, we show that the number can go up to five when angle-resolved photoemission spectroscopy (ARPES) is applied. This owes to the capability of ARPES to detect the slowest photoelectrons that are directed only along the surface normal. By using a laser-based source, we optimised our setup for the slow photoelectrons and resolved the slowest-end cutoff of Au(111) with the sharpness not deteriorated by the bandwidth of light nor by Fermi-Dirac distribution. The work function was leveled within  ±0.4 meV at least from 30 to 90 K and the surface aging was discerned as a meV shift of the work function. Our study opens the investigations into the fifth significant digit of the work function.

Electronic structure and electron dynamics at the GaSb(001) surface studied by femtosecond pump-and-probe pulsed laser photoemission spectroscopy

2006 ◽  
Vol 252 (15) ◽  
pp. 5308-5311
Author(s):  
Martin Månsson ◽  
Michael A. Grishin ◽  
Oscar Tjernberg ◽  
Tomas Claesson ◽  
Henrik S. Karlsson ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Pulsed Laser ◽  
Photoemission Spectroscopy ◽  
Electron Dynamics ◽  
Pump And Probe ◽  
Laser Photoemission

Ultraviolet laser photoemission spectroscopy of FeSi: Observation of a gap opening in density of states

2005 ◽  
Vol 72 (23) ◽  
Author(s):  
K. Ishizaka ◽  
T. Kiss ◽  
T. Shimojima ◽  
T. Yokoya ◽  
T. Togashi ◽  
...  
Keyword(s):  
Density Of States ◽  
Photoemission Spectroscopy ◽  
Ultraviolet Laser ◽  
Laser Photoemission ◽  
Gap Opening

Femtosecond laser photoemission microscopy of capillary nanotips with ultrahigh spatial resolution

2005 ◽  
Vol 101 (4) ◽  
pp. 628-634 ◽  
Author(s):  
B. N. Mironov ◽  
S. A. Aseev ◽  
S. V. Chekalin ◽  
V. S. Letokhov
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Photoemission
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