1 August 2008 Method to characterize superficial particulate pollution and to evaluate its impact on optical components under a high power laser
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Abstract
Pollution is known to play an important role in optical performances of high power laser components. In this study, we propose a method to characterize the particulate pollution and to evaluate its impact on the optical component lifetime. We applied it at the Ligne d'Intégration Laser (LIL), which is a prototype installation of the future Laser Mega Joule facility. By systematic examination of each particle, we obtain, in number, size, and chemical composition, an overview of pollution deposited on optical surfaces. Then we deduce the origin of the principal pollutions. After irradiation of the polluted samples, with conditions close to the maximum of the LIL operation, no laser-induced damage is observed. In contrast, irradiation induces an important cleaning.
© (2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
Stéphanie Palmier, Stéphanie Palmier, Séverine Garcia, Séverine Garcia, Jean-Luc Rullier, Jean-Luc Rullier, } "Method to characterize superficial particulate pollution and to evaluate its impact on optical components under a high power laser," Optical Engineering 47(8), 084203 (1 August 2008). https://doi.org/10.1117/1.2969130 . Submission:
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