2.9μmTm,Ho∶LuAG激光晶体的生长与光谱性能研究:2.9μmTm,Ho∶LuAG激光晶体的生长与光谱性能研究
Growth and Spectroscopic Properties of the 2.9 μm Tm, Ho: LuAG Laser Crystal
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作 者:张会丽[1,2] 孙敦陆[1] 罗建乔[1] 陈家康[1,2] 曹世豪[1,2] 程毛杰[1] 张庆礼[1] 殷绍唐[1]
Zhang Huili Sun Dunlu Luo Jianqiao Chen Jiakang Cao Shihao Cheng Maojie Zhang Qingli Yin Shaotang(1 Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China 2 University of Chinese Academy of Sciences, Beijing 100049, China)
机构地区:[1]中国科学院安徽光学精密机械研究所安徽省光子器件与材料重点实验室,安徽合肥230031 [2]中国科学院大学,北京100049
出 处:《光学学报》 EI CSCD 2014年第4期 206-210页,共5页
Acta Optica Sinica
基 金:国家自然科学基金(91122021,51272254,61205173,51172236,50932005)
摘 要:采用提拉法成功生长出了高光学质量的Tm,Ho:LuAG(Lu3Al5O12)激光晶体,对其光谱性能进行了研究。测量了晶体320-3000 nm范围内的吸收光谱,在784 nm附近有较宽的吸收带,半峰全宽约为12 nm。用784 nm半导体激光器(LD)作激发源,测量了晶体2800-3000 nm范围内的稳态荧光光谱,并用光参量振荡(OPO)脉冲激光激发,测量了晶体的瞬态荧光光谱,对数据曲线进行指数衰减拟合,获得了晶体2.9 μm附近波长激光上下能级5I6和5I7的寿命,分别为51 μs和7.5 ms。与Tm,HoYAG(Y3Al5O12)晶体的光谱参数进行了比较,结果表明,Tm,Ho:LuAG是一种相对容易获得2.911 μm中红外激光输出的激光晶体。
Tm,Ho:LuAG crystal with high optical quality is grown successfully by the Czochralski method, and its spectroscopic characteristics are investigated. The absorption spectrum of Tm,Ho:LuAG crystal in the range of 320-3000 nm is measured, and a wide absorption band with full width at half maximum (FWHM) of 12 nm is located near 784 nm. The fluorescence spectrum in the range of 2800-3000 nm is measured by exciting with 784 nm laser diode (LD). The fluorescence decay curves are also measured by exciting with optical parameter oscillation (OPO) laser. The lifetimes of the upper lever 5I6 (51 μs) and lower lever 5I7 (7.5 ms) are obtained by fitting the exponential decay curves. Compared with the parameters of Tm,HoYAG (Y3Al5O12) crystal, it suggests that Tm,Ho:LuAG crystal is a potential mid-infrared laser material to realize the laser at 2.911 μm.
关键词:材料 Tm Ho LuAG 光谱性能 2 911μm 提拉法 激光晶体
laser materials ; Tm,Ho∶LuAG spectroscopy properties ; 2.911 micrometer ; Czochralski method ; lasercrystal ;