Space charge corrected electron emission from an aluminum surface under non-equilibrium conditions

Wendelen, W.; Mueller, B. Y.; Autrique, David; Rethfeld, B.; Bogaerts, Annemie

doi:10.1063/1.4729071

Cited by 38 publications

(44 citation statements)

References 51 publications

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“…However, the relationship between the collected charge on the anode and the laser energy used for the photoemission process is not perfectly linear; at higher laser energy a parabolic dependence is observed. This behavior has already been reported in literature and can be explained by the space charge effect [12]. Even though Pb has been shown to have good FIG.…”

Section: Resultsmentioning

confidence: 65%

Picosecond and subpicosecond pulsed laser deposition of Pb thin films

Gontad

Lorusso

Klini

et al. 2013

Phys. Rev. ST Accel. Beams

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Pb thin films were deposited on Nb substrates by means of pulsed laser deposition (PLD) with UV radiation (248 nm), in two different ablation regimes: picosecond (5 ps) and subpicosecond (0.5 ps). Granular films with grain size on the micron scale have been obtained, with no evidence of large droplet formation. All films presented a polycrystalline character with preferential orientation along the (111) crystalline planes. A maximum quantum efficiency (QE) of 7:3 Â 10 À5 (at 266 nm and 7 ns pulse duration) was measured, after laser cleaning, demonstrating good photoemission performance for Pb thin films deposited by ultrashort PLD. Moreover, Pb thin film photocathodes have maintained their QE for days, providing excellent chemical stability and durability. These results suggest that Pb thin films deposited on Nb by ultrashort PLD are a noteworthy alternative for the fabrication of photocathodes for superconductive radio-frequency electron guns. Finally, a comparison with the characteristics of Pb films prepared by ns PLD is illustrated and discussed.

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Section: Resultsmentioning

confidence: 65%

Picosecond and subpicosecond pulsed laser deposition of Pb thin films

Gontad

Lorusso

Klini

et al. 2013

Phys. Rev. ST Accel. Beams

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“…20 In addition, the temporal evolution of the TEF is visualized by the change of Da x as a function of delay time in the inset of Figure 4, which is found to build up and decay exponentially with the characteristic time constants of 37 6 2 ps and 137 6 6 ps, respectively.…”

Section: B Transient Electric Field Induced By Outward Electronsmentioning

confidence: 99%

Simultaneous investigation of ultrafast structural dynamics and transient electric field by sub-picosecond electron pulses

Zhu

Chen

et al. 2014

Journal of Applied Physics

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The ultrafast structure dynamics and surface transient electric field, which are concurrently induced by laser excited electrons of an aluminum nanofilm, have been investigated simultaneously by the same transmission electron diffraction patterns. These two processes are found to be significantly different and distinguishable by tracing the time dependent changes of electron diffraction and deflection angles, respectively. This study also provides a practical means to evaluate simultaneously the effect of transient electric field during the study of structural dynamics under low pump fluence by transmission ultrafast electron diffraction.

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“…The Fowler function F (X n ) can be learned from Refs. [42,44]. All the parameters are listed in Table 1.…”

Section: Two-temperature Modelmentioning

confidence: 99%