Dysprosium-doped chalcogenide glass and preparation thereof

Abstract

The invention belongs to the technical field of an optical material, and relates to an infrared optical transmission material, an infrared luminescent material and a preparation method thereof, in particular to novel dysprosium-containing chalcogenide glass and a preparation method thereof. The dysprosium-containing chalcogenide glass comprises the following components in mol content by the total weight of GeGaS-CdS glass: 20 to 24 mol percent of Ge, 10 to 12 mol percent of Ga, 52 to 67 mol percent of S, and 1 to 18 mol percent of CdS, wherein a range of doping amount of a rare-earth element dysprosium is between 1,000 and 50,000ppm. The preparation method mainly comprises the steps of pretreatment of a quartz tube, purification treatment of a glass batch, vacuum seal and glass melting. Compared with the prior chalcogenide glass, an initial reactant of the dysprosium-containing chalcogenide glass has no corrosion to quartz, introduction amount of rare-earth elements is quite high, glass forming property is excellent, and thermodynamic performance is good. The preparation method for the novel dysprosium-doped chalcogenide glass has the advantages of simple technology, no corrosion, easy operation, short processing period and high efficiency, and is suitable for large-scale production; and the dysprosium-containing chalcogenide glass can be used as an infrared laser material and applied to the high-tech fields such as national defense, communication and the like.

Description

technical field [0001] The invention belongs to the technical field of optical materials, and relates to an infrared optical transmission material, an infrared luminescent material and a preparation method thereof, in particular to a novel dysprosium-doped chalcogenide glass and a preparation method thereof. Background technique [0002] Rare earth luminescent ion Dy 3+ There are abundant energy levels in the infrared band (1-5 microns), making Dy 3+ It has become a candidate material for applications such as lasers, amplifiers, laser light sources for remote sensing, and infrared countermeasures. However, energy level transitions in the infrared, especially in the mid-infrared, are difficult to observe in common oxide and fluoride glasses because these materials have high multiphonon quenching effects. [0003] Chalcogenide glasses have attracted attention in the field of infrared optical amplifiers and laser materials due to their excellent infrared transmittance, good g...

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Problems solved by technology

However, because BaS is strongly corrosive to the quartz reaction vessel in the molten state, it greatly increases the difficulty of the preparation process and the quantity of single production, which limits the industrialization and practical production capacity of this material.

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