Bifunctional LaxNdyGdzSc4-x-y-z(BO3)4 crystal: Czochralski growth, linear and nonlinear optical properties, and near-infrared laser emission performances

被引：10

作者：

Greculeasa, Madalin ^{[1
,2
]}

Broasca, Alin ^{[1
,2
]}

Voicu, Flavius ^{[1
]}

Hau, Stefania ^{[1
]}

Croitoru, Gabriela ^{[1
]}

Stanciu, George ^{[1
]}

Gheorghe, Cristina ^{[1
]}

Pavel, Nicolaie ^{[1
]}

Gheorghe, Lucian ^{[1
]}

机构：

[1] Natl Inst Laser Plasma & Radiat Phys, Lab Solid State Quantum Elect, Magurele 077125, Romania

[2] Univ Bucharest, Doctoral Sch Phys, Bucharest, Romania

来源：

OPTICS AND LASER TECHNOLOGY | 2020年 / 131卷

关键词：

Czochralski; Neodymium; Spectroscopy; Nonlinear optical crystal; Laser crystal; Bifunctional crystal; ND3+;

D O I：

10.1016/j.optlastec.2020.106433

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High optical quality LaxNdyGdzSc4-x-y-z(BO3)(4) (Nd:LGSB) single crystal has been obtained by the Czochralski technique. The crystal composition was found to be La0.721Nd0.046Gd0.452Sc2.781(BO3)(4). Low-temperature spectroscopic investigations revealed that the Nd3+ ions enter only in La3+ ions sites. The main nonlinear optical (NLO) properties of Nd:LGSB (4.6 at.%) crystal were found to be comparable to those of yttrium aluminum borate (YAB) crystal. Laser emission at 1.06 mu m with 24.5 mJ energy per pulse for 35.6 mJ absorbed pump pulse energy at 807 nm and 0.71 slope efficiency has been obtained from a c-cut Nd:LGSB (4.6 at.%) uncoated crystal sample with 6.14 mm length. Slope efficiency as high as 0.73 was obtained from an uncoated 2.96 mm thick acut sample. The good NLO properties of Nd:LGSB crystal together with the excellent near-infrared laser performances, recommends Nd:LGSB as a very promising bifunctional crystal in self-frequency doubling configuration.

引用

页数：8