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Yb3+:GdTaO4的提拉法晶体生长和光谱特性

Crystal Gowth by Czochralski Method and Sectral Poperties of Yb3+:GdTaO4

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摘要

用提拉法生长了新型激光晶体Yb3+:GdTaO4,测量了它的吸收和光致发光光谱,计算了它的光谱特性参数。Yb3+:GdTaO4的吸收半峰全宽(FWHM)为56 nm,约为Yb3+:YAG的2.4倍;吸收峰为930,957,974 nm,吸收截面分别为0.81×10-20,0.91×10-20,1.2×10-20 cM2;光致发光发射主峰为1016,1035 nm的FWHM分别为42,57 nm,为Yb3+:YAG的4-6倍,发射截面约为2.29×10-20,1.36×10-20 cM2,与Yb3+:YAG相当。它的宽吸收带有利于降低抽运激光二极管(LD)的温度调控依赖,宽的发射带则有利于实现超短脉冲和可调谐激光输出。结果表明Yb3+:GdTaO4是非常有希望的全固态超短脉冲激光、可调谐激光的工作物质。

Abstract

Yb3+:GdTaO4 was grown by Czochralski method. Its absorption,photoluminescence spectra were measured,and its spectral property parameters were computed. Full width at half maximum (FWHM) of absorption of Yb3+:GdTaO4 is 56 nm,which is 2.4 times broader than that of Yb3+:YAG. Its absorption peaks are at 930,957 and 974 nm,whose absorption cross sections are 0.81×10-20,0.91×10-20,and 1.2×10-20 cM2,respectively. The main peak of photoluminescence is at 1016 nm. The FWHM of emission peaking at 1016 and 1035 nm are 42 and 57 nm,which are 4-6 times wider than that of Yb3+:YAG,corresponding cross sections are 2.29×10-20 and 1.36×10-20 cM2,respectively,which are a little higher than or equal to that of Yb3+:YAG. Its broad absorption band makes for decreasing the dependence on the temperature control of pump laser diode (LD),and broad emission band makes for realizing laser output of ultra-short pulse and tunable laser. Results indicate that Yb3+:GdTaO4 is a very promising laser medium used in all-solid state ultra-short pulsed and tunable lasers.

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中图分类号:O782+.5

DOI:10.3788/aos20103003.0849

所属栏目:材料

基金项目:国家自然科学基金(50772112,50872135,90922003)和安徽省优秀青年基金(08040106820)资助课题。

收稿日期:2009-08-06

修改稿日期:2009-10-26

网络出版日期:0001-01-01

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张庆礼:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031
周文龙:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031
刘文鹏:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031
丁丽华:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031
罗建乔:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031
殷绍唐:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031
江海河:中国科学院 安徽光学精密机械研究所,安徽 合肥 230031安徽光子器件与材料重点实验室,安徽 合肥 230031

联系人作者:张庆礼(zql@aiofm.ac.cn)

备注:张庆礼|研究员|从事功能晶体生长及物理方面的研究|(1973-),男,博士。

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引用该论文

Zhang Qingli,Zhou Wenlong,Liu Wenpeng,Ding Lihua,Luo Jianqiao,Yin Shaotang,Jiang Haihe. Crystal Gowth by Czochralski Method and Sectral Poperties of Yb3+:GdTaO4[J]. Acta Optica Sinica, 2010, 30(3): 849-853

张庆礼,周文龙,刘文鹏,丁丽华,罗建乔,殷绍唐,江海河. Yb3+:GdTaO4的提拉法晶体生长和光谱特性[J]. 光学学报, 2010, 30(3): 849-853

被引情况

【1】庄任重,张剑锋,郭丽花. 掺镱钼酸锶激光晶体的光谱研究. 应用光学, 2011, 32(1): 184-188

【2】曹月鑫,姜大朋,詹曜宇,苏良碧,马凤凯,汪传勇,王静雅,钱小波,唐飞,杨秋红,徐军. Nd/Y共掺CaF2单晶的光谱与激光性能. 中国激光, 2013, 40(s1): 106002--1

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