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

Journal Article · Tue Jul 31 04:00:00 EDT 2001 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2001V031N07ABEH002009· OSTI ID:21454732

Dolgaev, Sergei I; Karasev, M E; Kulevskii, L A; Simakin, Aleksandr V; Shafeev, Georgii A ^[1]

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1. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)

The laser ablation of sapphire is studied by irradiating its interface with water and aqueous solutions of KOH, KCl and Na{sub 2}CO{sub 3} by 2.92-{mu}m 130-ns holmium laser pulses. The ablation rate depends on the concentration and type of the dissolved substance. The highest ablation rate is 2.5{mu}m per pulse for a laser fluence of 120 J cm{sup -2}. The ablation of sapphire is attributed to its dissolution in water or in aqueous solutions in the supercritical state. (interaction of laser radiation with matter. laser plasma)

• OSTI ID: 21454732
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 7 Vol. 31; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABLATION
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBONATES
CHLORIDES
CHLORINE COMPOUNDS
CORUNDUM
DISPERSIONS
DISSOLUTION
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HOLMIUM
HOMOGENEOUS MIXTURES
HYDROGEN COMPOUNDS
HYDROXIDES
LASER RADIATION
LASERS
LIQUIDS
METALS
MINERALS
MIXTURES
OXIDE MINERALS
OXYGEN COMPOUNDS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
PULSES
RADIATION EFFECTS
RADIATIONS
RARE EARTHS
SAPPHIRE
SODIUM CARBONATES
SODIUM COMPOUNDS
SOLUTIONS
SUPERCRITICAL STATE
WATER