Published 2019 | Version v1
Journal article Metadata-only

PAH under XUV excitation: an ultrafast XUV-photochemistry experiment for astrophysics

Creators

  • 1. University of Lyon, Universite Claude Bernard Lyon 1, CNRS, Institut Lumiere Matiere, F-69622 Villeurbanne (France)
  • 2. Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)
  • 3. Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, Heidelberg 69120 (Germany)

Description

Understanding processes induced by XUV excitation of Polycyclic Aromatic Hydrocarbons (PAHs) is at the heart of molecular astrophysics, which aims at understanding molecular evolution in interstellar media. We used ultrashort XUV pulses to produce highly excited PAHs cations. The photo-induced dynamics is probed using a pump-probe XUV-IR spectroscopy. By studying PAH from small (naphthalene) to large (hexabenzocoronene) PAHs, we show that the dynamic is governed by the large density of states, in which many-body quantum effects are dominant.

Availability note (English)

Available from https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_06012.pdf; https://doaj.org/article/3ab7ff4369fd421ab428c99b208ba504

Additional details

Identifiers

URL
https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_06012.pdf; https://doaj.org/article/3ab7ff4369fd421ab428c99b208ba504;
DOI
10.1051/epjconf/201920506012;

Publishing Information

Journal Title
EPJ. Web of Conferences
Journal Volume
205
Journal Page Range
vp.
ISSN
2100-014X

Conference

Title
21. International Conference on Ultrafast Phenomena
Acronym
UP 2018
Dates
15-20 Jul 2018
Place
Hamburg (Germany)

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
53098087
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ASTROPHYSICS; CATIONS; DENSITY OF STATES; EXCITATION; EXTREME ULTRAVIOLET RADIATION; INFRARED SPECTRA; MANY-BODY PROBLEM; NAPHTHALENE; PHOTOCHEMISTRY; PULSES; PUMPING
Descriptors DEC
AROMATICS; CHARGED PARTICLES; CHEMISTRY; ELECTROMAGNETIC RADIATION; ENERGY-LEVEL TRANSITIONS; HYDROCARBONS; IONS; ORGANIC COMPOUNDS; PHYSICS; POLYCYCLIC AROMATIC HYDROCARBONS; RADIATIONS; SPECTRA; ULTRAVIOLET RADIATION