Dissolution in a supercritical liquid as a mechanism of laser ablation of sapphire

Autor: S.I. Dolgaev, M E Karasev, L A Kulevskii, Aleksandr V Simakin, Georgii A Shafeev
Rok vydání: 2001
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1468-4799
1063-7818
DOI: 10.1070/qe2001v031n07abeh002009
Popis: The laser ablation of sapphire is studied by irradiating its interface with water and aqueous solutions of KOH, KCl and Na2CO3 by 2.92-μm 130-ns holmium laser pulses. The ablation rate depends on the concentration and type of the dissolved substance. The highest ablation rate is 2.5μm per pulse for a laser fluence of 120 J cm-2. The ablation of sapphire is attributed to its dissolution in water or in aqueous solutions in the supercritical state.
Databáze: OpenAIRE