Abstract
Language | English |
---|---|
Pages | 2130-2132 |
Number of pages | 2 |
Journal | Applied Physics Letters |
Volume | 79 |
Issue number | 14 |
DOIs | |
Publication status | Published - 1 Oct 2001 |
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Keywords
- vanessence
- ultrashort electron pulses
- nanoscience
- silver
- gold
- metallic thin films
- surface plasmons
- electron field emission
- photoemission
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Evanescent-wave acceleration of ultrashort electron pulses. / Zawadzka, Justyna; Jaroszynski, Dino A.; Carey, John J.; Wynne, Klaas.
In: Applied Physics Letters, Vol. 79, No. 14, 01.10.2001, p. 2130-2132.Research output: Contribution to journal › Article
TY - JOUR
T1 - Evanescent-wave acceleration of ultrashort electron pulses
AU - Zawadzka, Justyna
AU - Jaroszynski, Dino A.
AU - Carey, John J.
AU - Wynne, Klaas
PY - 2001/10/1
Y1 - 2001/10/1
N2 - High-power femtosecond laser pulses have been used to excite surface plasmons in 500 Å silver and gold films. Nonlinear excitation results in the emission of electron bunches through multiphoton excitation at low power and laser-induced field emission at high power. The energies of photoelectrons are found to extend as high as 0.4 keV. Calculations show that these high energies are due to ponderomotive acceleration in an evanescent field extending from the metal film out into the vacuum. The theoretical calculations suggest that femtosecond electron pulses with relativistic energies can be generated using longer wavelengths or by developing the surface morphology.
AB - High-power femtosecond laser pulses have been used to excite surface plasmons in 500 Å silver and gold films. Nonlinear excitation results in the emission of electron bunches through multiphoton excitation at low power and laser-induced field emission at high power. The energies of photoelectrons are found to extend as high as 0.4 keV. Calculations show that these high energies are due to ponderomotive acceleration in an evanescent field extending from the metal film out into the vacuum. The theoretical calculations suggest that femtosecond electron pulses with relativistic energies can be generated using longer wavelengths or by developing the surface morphology.
KW - vanessence
KW - ultrashort electron pulses
KW - nanoscience
KW - silver
KW - gold
KW - metallic thin films
KW - surface plasmons
KW - electron field emission
KW - photoemission
UR - http://dx.doi.org/10.1063/1.1406562
U2 - 10.1063/1.1406562
DO - 10.1063/1.1406562
M3 - Article
VL - 79
SP - 2130
EP - 2132
JO - Applied Physics Letters
T2 - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 14
ER -