Large-volume CaF2 single crystals with reduced scattering and improved laser stability, and uses thereof

US7534412B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Lars Ortmann · Jena, DE
• Joerg Kandler · Cospeda, DE
• Andreas Menzel · Jena, DE
• Matthias Mueller · Harsefeld, DE
• Lutz Parthier · Kleinmachnow, DE
• Gordon Von Der Goenna · Jena, DE

Key dates

• Filing date: May 8, 2008
• Grant date: May 19, 2009
• Expiry date: May 8, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/80
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Single crystals with low scattering, small refractive index differences and few small angle grain boundaries have a bi-directional scattering distribution function value (BSDF) of less than 1.5*10−6 or 5*10−7.