Regularities of laser-stimulated desorption of oxygen from zinc oxide

Andrei A. Lisachenko

doi:10.1117/12.417690

1 February 2001 Regularities of laser-stimulated desorption of oxygen from zinc oxide

Andrei A. Lisachenko

Author Affiliations +

Proceedings Volume 4348, Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (2001) https://doi.org/10.1117/12.417690
Event: Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 2000, St. Petersburg, Russian Federation

Abstract

The time-of-flight method was used to study the laser- stimulated desorption of atoms and molecules from the surface of ZnO. The kinetic energy distributions of desorbed oxygen molecules are characterized by the presence of two forms: 'fast' with kinetic temperature approximately equals 3000 K and 'slow' with T_k approximately equals 550 K. The first one is typical for desorption excitation in the self- absorption region (h(nu) > E_g), and the second one in the transparent region. Two non-thermal mechanisms of desorption are suggested.

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Andrei A. Lisachenko "Regularities of laser-stimulated desorption of oxygen from zinc oxide", Proc. SPIE 4348, Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (1 February 2001); https://doi.org/10.1117/12.417690

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