Laser-induzierte schnelle thermische Desorption von Festkörper-Oberflächen / Rapid Laser Beam Induced Thermal Desorption from Solid Surfaces

Open Access

1 November 1972

journal article
Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A

Vol. 27 (11) , 1607-1610
https://doi.org/10.1515/zna-1972-1112

Abstract

Absorption of a pulse of laser light in the surface region of a solid causes a fast temperature increase, followed, after the end of the laser pulse, by a rapid decrease to the base temperature. Experiments with a Nd laser (power 10⁵ - 10⁶ W/cm², half width of the pulse 150 μsec) showed that desorption of CO from a Pd surface reaches its maximum rate within the time constant of the system ( ~ 0.5 msec). This effect can be used for example to investigate the kinetics of adsorption /desorption processes by means of relaxation methods.

Keywords

DESORPTION
LASER
THERMAL
FESTKÖRPER
THERMISCHE
INDUZIERTE
WIDTH
BEAM
ABSORPTION
ΜSEC

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