Garnet laser crystal containing scandium of high efficiency antiradiation Yb3+ sensitizing Er3+

Abstract

The invention discloses a laser crystal with scandium stone garnet of high effective radio resistant Yb3+ sensitizing Er3+, which is characterized by the following: setting molecular formula of the crystal as Yb3+, Er3+:A3Sc2B3O12[A=Gd, Y, Lu; B=Ga, Al]; setting Yb3+ and Er3+ as A3+ with displace dodecahedron central position; absorbing energy with Yb3+ as sensitizing ion; passing to active ion Er3+; dividing laser wave range at nearby of 1. 5 mum and 2. 7-3 mum through highly doped and lowly doped of Er3+ ion concentration. This laser can be used to medical, light communication, scientific study and military domain, which can meet the need of space environment application.

Description

technical field

[0001] The invention belongs to the field of functional crystal materials, in particular to a high-efficiency radiation-resistant scandium-containing garnet laser crystal. technical background

[0002] In space science research, lasers may be irradiated by gamma rays and high-energy particles, which requires lasers to be resistant to ray radiation and the impact of high-energy particles. Therefore, highly efficient radiation-resistant laser materials are of great significance for the development of space laser technology.

[0003] Scandium-containing garnet crystal A 3 sc 2 B 3 o 12 [A=Gd, Y, Lu; B=Ga, Al] is a laser working matrix with excellent performance. The crystal structure belongs to the cubic crystal system, and single crystals with high optical quality can be grown by the melt pulling method. Danileiko et al. (Yu.K.Danileko et al.Sov.J.Quantum Electron., 1985, 15:286) reported that Nd, Cr: GSGG (Gd 3 sc 2 Ga 3 o 12 ) did not reach its damage...

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