Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

A. Rousse; C. Rischel; I. Uschmann; E. Förster; P. A. Albouy; J. P. Geindre; P. Audebert; J. C. Gauthier; A. Antonetti

doi:10.1107/S0021889899008870

Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

A. Rousse
, C. Rischel
, I. Uschmann
, E. Förster
, P. A. Albouy
, J. P. Geindre
, P. Audebert
, J. C. Gauthier
, A. Antonetti

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

Abstract

Ultrafast disordering in Langmuir-Blodgett (LB) films and TlAP (thallium acid phthalate) crystals has been investigated by optical-pump-X-ray-probe experiments using intense femtosecond laser pulses. A laser-produced plasma X-ray source at 7.12 Å wavelength is used to study atomic dynamics by subpicosecond time-resolved X-ray diffraction. It is found that a drop of the X-ray diffracted intensity appears with time constants from below 600 fs up to a few tens of picoseconds in LB films optically excited at laser fluxes from 1.8 to 27 J cm^-2. This loss in the diffracted intensity is understood as a displacement of the diffracting atoms by ∼8 Å from their equilibrium position. The response of the TlAP crystal was significantly slower. The relation to the atomic structure of the materials is discussed.

Original language	English
Pages (from-to)	977-981
Number of pages	5
Journal	Journal of Applied Crystallography
Volume	32
Issue number	5
DOIs	https://doi.org/10.1107/S0021889899008870
Publication status	Published - 1 Jan 1999

Access to Document

10.1107/S0021889899008870

Cite this

@article{0f6e3f0ae73747c0aa8c20d7dbf66f92,

title = "Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids",

abstract = "Ultrafast disordering in Langmuir-Blodgett (LB) films and TlAP (thallium acid phthalate) crystals has been investigated by optical-pump-X-ray-probe experiments using intense femtosecond laser pulses. A laser-produced plasma X-ray source at 7.12 {\AA} wavelength is used to study atomic dynamics by subpicosecond time-resolved X-ray diffraction. It is found that a drop of the X-ray diffracted intensity appears with time constants from below 600 fs up to a few tens of picoseconds in LB films optically excited at laser fluxes from 1.8 to 27 J cm-2. This loss in the diffracted intensity is understood as a displacement of the diffracting atoms by ∼8 {\AA} from their equilibrium position. The response of the TlAP crystal was significantly slower. The relation to the atomic structure of the materials is discussed.",

author = "A. Rousse and C. Rischel and I. Uschmann and E. F{\"o}rster and Albouy, \{P. A.\} and Geindre, \{J. P.\} and P. Audebert and Gauthier, \{J. C.\} and A. Antonetti",

year = "1999",

month = jan,

day = "1",

doi = "10.1107/S0021889899008870",

language = "English",

volume = "32",

pages = "977--981",

journal = "Journal of Applied Crystallography",

issn = "0021-8898",

number = "5",

}

TY - JOUR

T1 - Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

AU - Rousse, A.

AU - Rischel, C.

AU - Uschmann, I.

AU - Förster, E.

AU - Albouy, P. A.

AU - Geindre, J. P.

AU - Audebert, P.

AU - Gauthier, J. C.

AU - Antonetti, A.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Ultrafast disordering in Langmuir-Blodgett (LB) films and TlAP (thallium acid phthalate) crystals has been investigated by optical-pump-X-ray-probe experiments using intense femtosecond laser pulses. A laser-produced plasma X-ray source at 7.12 Å wavelength is used to study atomic dynamics by subpicosecond time-resolved X-ray diffraction. It is found that a drop of the X-ray diffracted intensity appears with time constants from below 600 fs up to a few tens of picoseconds in LB films optically excited at laser fluxes from 1.8 to 27 J cm-2. This loss in the diffracted intensity is understood as a displacement of the diffracting atoms by ∼8 Å from their equilibrium position. The response of the TlAP crystal was significantly slower. The relation to the atomic structure of the materials is discussed.

AB - Ultrafast disordering in Langmuir-Blodgett (LB) films and TlAP (thallium acid phthalate) crystals has been investigated by optical-pump-X-ray-probe experiments using intense femtosecond laser pulses. A laser-produced plasma X-ray source at 7.12 Å wavelength is used to study atomic dynamics by subpicosecond time-resolved X-ray diffraction. It is found that a drop of the X-ray diffracted intensity appears with time constants from below 600 fs up to a few tens of picoseconds in LB films optically excited at laser fluxes from 1.8 to 27 J cm-2. This loss in the diffracted intensity is understood as a displacement of the diffracting atoms by ∼8 Å from their equilibrium position. The response of the TlAP crystal was significantly slower. The relation to the atomic structure of the materials is discussed.

U2 - 10.1107/S0021889899008870

DO - 10.1107/S0021889899008870

M3 - Article

AN - SCOPUS:0000459139

SN - 0021-8898

VL - 32

SP - 977

EP - 981

JO - Journal of Applied Crystallography

JF - Journal of Applied Crystallography

IS - 5

ER -

Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

Abstract

Access to Document

Fingerprint

Cite this