Molecular Photoion Production Processes Induced by Surface Laser Radiation
The ion generation processes taking place when laser light irradiates the surface of a solid, received widespread attention during recent years. In the studies carried out in a number of laboratories laser radiation with its parameters varying over a wide range was used. The pulse duration varied from continuous wave to 10−11s, the wavelength between the IR and UV ranges and the intensity from several watts to 1011W. The action of surface laser irradiation with such different parameters must cause various processes giving rise to ions (Fig. 1). The study of these processes is of significant practical interest. Now, for example, the formation of ions stimulated by laser radiation is used in mass-spectrometric analysis of various substances—from high-melting materials to bioorganic molecules.
KeywordsLaser Pulse Energy Fluence Naphthalene Molecule Molecular Desorption Laser Energy Fluence
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