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Erschienen in:
1988 | OriginalPaper | Buchkapitel
Porous Silica Sol-Gel Coatings for Nd: Glass High-Power Pulsed Laser Uses
verfasst von : Hervé Floch, Jean-Jacques Priotton, Ian Malvil Thomas
Erschienen in: The Physics and Technology of Amorphous SiO2
Verlag: Springer US
Enthalten in: Professional Book Archive
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A method of forming a laser damage resistant antireflective (AR) coating on fused silica, borosilicate and phosphate glasses, and even onto KDP crystals has been used. The single-layer porous coating is applied by dip or spin from a specific silica colloidal suspension in ethanol. This sol-gel coating deposit is processed at room temperature and requires no subsequent treatment. The coated surfaces work near 100 % transmittance and exhibit laser-induced damage thresholds, measured with 1.06 μm, 1-ns pulses, two to three times greater than levels of widely used PVD (Physical Vapor Deposition) silica-titania multilayer1, anti-reflection films.