ABSTRACT
The interaction of light with an atom or molecule is classiŸed into absorption, scattering, and pair production(Hatano,1999:109).Inthischapter,thetrivialinteractionoflightofmoderatephoton energy,inparticular,theinteractionofvacuumultravioletlight,isdiscussed,andtherefore,onlythe absorptionprocessisconsidered.WefollowthedeŸnitionofthevacuumultravioletlightbySamson (Samson,1980:1-3),thatis,thelightofwavelengthrangingfrom200to0.2nm.Thephotonenergy of the vacuum ultraviolet light thus ranges from approximately 6 eV to 6 keV. The reason why we
2.1 Introduction ..............................................................................................................................9 2.2Superexcited States of Molecules ........................................................................................... 13 2.3Observing the Singly Inner-Valence Excited and Multiply Excited States ............................ 17 2.4Oscillator Strength Distribution for the Emission of Fluorescence
from Neutral Fragments .....................................................................................................18 2.5 Conclusion ..............................................................................................................................25 Acknowledgments ............................................................................................................................25 References ........................................................................................................................................25
focus on vacuum ultraviolet light is that the maximum value of the photoabsorption cross section is usually given in this range.
