Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter

Andrea Di Cicco; Keisuke Hatada; Erika Giangrisostomi; Roberto Gunnella; Filippo Bencivenga; Emiliano Principi; Claudio Masciovecchio; Adriano Filipponi

doi:10.1103/PhysRevB.90.220303

Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter

Andrea Di Cicco^*, Keisuke Hatada, Erika Giangrisostomi, Roberto Gunnella, Filippo Bencivenga, Emiliano Principi, Claudio Masciovecchio, Adriano Filipponi

^*Corresponding author for this work

Department of Physics

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

13 Scopus citations

Abstract

High intensity pulses obtained by modern extreme ultraviolet (EUV) and x-ray photon sources allows the observation of peculiar phenomena in condensed matter. Experiments performed at the Fermi@Elettra FEL-1 free-electron-laser source at 23.7, 33.5, and 37.5 eV on Al thin films, for an intermediate-fluence range up to about 20J/cm2, show evidence for a nonmonotonic EUV transmission trend. A decreasing transmission up to about 5-10J/cm2 is followed by an increase at higher fluence, associated with saturable absorption effects. The present findings are interpreted within a simplified three-channel model, showing that an account of the interplay between ultrafast electron heating and saturation effects is required to explain the observed transmission trend.

Original language	English
Article number	220303
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	90
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.90.220303
State	Published - 2014/12/15

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.90.220303

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Di Cicco, A., Hatada, K., Giangrisostomi, E., Gunnella, R., Bencivenga, F., Principi, E., Masciovecchio, C., & Filipponi, A. (2014). Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter. Physical Review B - Condensed Matter and Materials Physics, 90(22), Article 220303. https://doi.org/10.1103/PhysRevB.90.220303

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title = "Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter",

abstract = "High intensity pulses obtained by modern extreme ultraviolet (EUV) and x-ray photon sources allows the observation of peculiar phenomena in condensed matter. Experiments performed at the Fermi@Elettra FEL-1 free-electron-laser source at 23.7, 33.5, and 37.5 eV on Al thin films, for an intermediate-fluence range up to about 20J/cm2, show evidence for a nonmonotonic EUV transmission trend. A decreasing transmission up to about 5-10J/cm2 is followed by an increase at higher fluence, associated with saturable absorption effects. The present findings are interpreted within a simplified three-channel model, showing that an account of the interplay between ultrafast electron heating and saturation effects is required to explain the observed transmission trend.",

author = "{Di Cicco}, Andrea and Keisuke Hatada and Erika Giangrisostomi and Roberto Gunnella and Filippo Bencivenga and Emiliano Principi and Claudio Masciovecchio and Adriano Filipponi",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

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doi = "10.1103/PhysRevB.90.220303",

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Di Cicco, A, Hatada, K, Giangrisostomi, E, Gunnella, R, Bencivenga, F, Principi, E, Masciovecchio, C & Filipponi, A 2014, 'Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter', Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 22, 220303. https://doi.org/10.1103/PhysRevB.90.220303

TY - JOUR

T1 - Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter

AU - Di Cicco, Andrea

AU - Hatada, Keisuke

AU - Giangrisostomi, Erika

AU - Gunnella, Roberto

AU - Bencivenga, Filippo

AU - Principi, Emiliano

AU - Masciovecchio, Claudio

AU - Filipponi, Adriano

PY - 2014/12/15

Y1 - 2014/12/15

N2 - High intensity pulses obtained by modern extreme ultraviolet (EUV) and x-ray photon sources allows the observation of peculiar phenomena in condensed matter. Experiments performed at the Fermi@Elettra FEL-1 free-electron-laser source at 23.7, 33.5, and 37.5 eV on Al thin films, for an intermediate-fluence range up to about 20J/cm2, show evidence for a nonmonotonic EUV transmission trend. A decreasing transmission up to about 5-10J/cm2 is followed by an increase at higher fluence, associated with saturable absorption effects. The present findings are interpreted within a simplified three-channel model, showing that an account of the interplay between ultrafast electron heating and saturation effects is required to explain the observed transmission trend.

AB - High intensity pulses obtained by modern extreme ultraviolet (EUV) and x-ray photon sources allows the observation of peculiar phenomena in condensed matter. Experiments performed at the Fermi@Elettra FEL-1 free-electron-laser source at 23.7, 33.5, and 37.5 eV on Al thin films, for an intermediate-fluence range up to about 20J/cm2, show evidence for a nonmonotonic EUV transmission trend. A decreasing transmission up to about 5-10J/cm2 is followed by an increase at higher fluence, associated with saturable absorption effects. The present findings are interpreted within a simplified three-channel model, showing that an account of the interplay between ultrafast electron heating and saturation effects is required to explain the observed transmission trend.

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U2 - 10.1103/PhysRevB.90.220303

DO - 10.1103/PhysRevB.90.220303

M3 - 学術論文

AN - SCOPUS:84918786345

SN - 1098-0121

VL - 90

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 22

M1 - 220303

ER -

Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter

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