Desorption of ions formed on the surface of a molecular crystal by a femtosecond-range laser pulse
Kozlov A. A. , Letokhov V. S., Matveets Yu. A., Chekalin S. V. , Yartsev A. P.
The first mass spectra of ions formed directly on the surface of metal-free phthalocyanine have been obtained during illumination by a 300-fs laser pulse at 615 nm and 308 nm. A basic feature of these ions, which distinguishes them from ions produced in the gas phase, is the absence of a substantial fragmentation of the molecule.