The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Laser Original
Pulse Duration Dependence of Femtosecond Ionization and Fragmentation of an Organic Molecule
Ryuji MIZOGUCHIYoshinori SHIMADAHidenori SHINOHARATomoyuki YATSUHASHINobuaki NAKASHIMA
Author information
JOURNAL FREE ACCESS

2004 Volume 32 Issue 11 Pages 717-721

Details
Abstract
The ionization and fragmentation of 2,3-dimethyl-1,3-butadiene of a femtosecond laser have been studied at various pulse durations, which were changed from 35 fs to 1 ps. A reflectron-type time of flight mass spectrometer (TOF-MS) was used for ion detection. Molecules were ionized under a strong laser field and formed parent ions. Some were fragmented, resulting in a drastic increase of ionic species. Fragmentation was dominant when a long duration pulse was used, probably because the parent and large fragmented ions were further decomposed into small fragmented ions. Such heavy fragmentation may cause an underestimation of Isat.
Content from these authors
© 2004 by The Laser Society of Japan
Previous article Next article
feedback
Top