Investigation of dissociative photoionization pathways for orientation-selected molecules by phase-controlled laser fields

Intense (5.0 × 1012 W/cm2) nanosecond phase-controlled laser fields consisting of fundamental and second-harmonic light induce orientation-selective molecular tunneling ionization in a randomly orientated molecular ensemble in a gas phase. The selection of oriented molecules enables one to elucidate...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:AIP advances 2021-01, Vol.11 (1), p.015246-015246-8
Hauptverfasser: Okutsu, Kenichi, Saito, Naoaki, Ohmura, Hideki
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Intense (5.0 × 1012 W/cm2) nanosecond phase-controlled laser fields consisting of fundamental and second-harmonic light induce orientation-selective molecular tunneling ionization in a randomly orientated molecular ensemble in a gas phase. The selection of oriented molecules enables one to elucidate dissociative photoionization pathways while eliminating loss of information due to orientational averaging. Here, we have investigated the dissociative ionization of hydrofluorocarbon molecules induced by phase-controlled two-color laser fields. From the phase-dependent behavior of photofragment emission from orientation-selected molecules, dissociation pathways were elucidated experimentally. Bond dissociation energies obtained by quantum chemical calculations support the identified dissociation pathways.
ISSN:2158-3226
2158-3226
DOI:10.1063/5.0029997