Neodymium ion doping soda-lime-silica based laser glass ceramics and preparation process thereof

Abstract

The invention provides rare-earth ion (Nd3+) doping Na2O-CaO-SiO2 based transparent glass ceramics laser working matter materials. Compositions and mass percentage content of the materials are: Na2O 17.5-20.0%, CaO 26.5-28.0%, SiO2 45.5-50.0%, TiO2+ZrO2 4.0-5.0%, Sb2O3+NH4NO3 3.0-5.0% and Nd2O3 1.0-5.0%. The preparation process of the materials is: (1) proportioning and smelting; (2) molding and annealing; (3) glass cutting; (4) glass heat treatment; (5) glass ceramics cold working; (6) performance test. The glass ceramics materials have both excellent performances of glass and single crystals. Compared with single crystal matrixes, the transparent laser glass ceramics materials have simple production technology, low cost and high doping concentration; compared with glass matrixes, as microcrystalline phases in the glass matrixes are precipitated, thermal conductivity and thermal shock resistance of the materials are improved. Simultaneously, as luminous ions selectively enter the microcrystalline phases, the materials are enabled to have spectral characteristics of crystalloids, fluorescence lines are narrowed, and fluorescence intensity is enhanced.

Description

technical field [0001] The invention belongs to the scientific field of inorganic non-metallic materials, and in particular relates to a transparent glass ceramic laser working substance material and a preparation method thereof. Background technique [0002] Laser, English is Laser (Light Amplification by Stimulated Emission of Radiation), that is, stimulated radiation light amplification, it is a new light source with a wide range of applications. Laser is a special kind of light produced by lasers. According to different working substances, lasers can be divided into four categories: gas, liquid, solid and semiconductor. In solid-state lasers, there are mainly two types of laser working materials: single crystal and glass. Glass and single crystal have their own advantages and disadvantages as laser host materials: single crystal has high thermal conductivity and high gain, and is suitable for continuous and high-repetition lasing. The disadvantages are preparation proce...

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Problems solved by technology

Glass and single crystal have their own advantages and disadvantages as laser host materials: single crystal has high thermal conductivity and high gain, and is suitable for continuous and high-repetition lasing. The disadvantages are preparation process duplication, high cost, and low doping concentration; glass fluorescence spectrum Line width, adjustable physical parameters, simple preparation process, low cost, high doping concentration, can be made into large size, suitable for high-energy pulse lasing, the disadvantage is low thermal conductivity and poor thermal shock resistance

There have been relevant reports at home and abroad about the research on glass ceramic laser working materials, mainly focusing on oxyfluoride systems, sulfur halide systems, etc. The rare earth ion doped Na 2 O-CaO-SiO 2 It is a transparent glass-ceramic laser working material. According to the search results of Web of Science, there has never been any relevant report in the laser field.

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