大尺寸Ce：Lu1.6Y0.4SiO5闪烁晶体的生长和光谱特性

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 激光与光电子功能材料研发中心

	大尺寸Ce：Lu1.6Y0.4SiO5闪烁晶体的生长和光谱特性; Crystal growth and optical characterization of Large-sized cerium-doped Lu1.6Y0.4SiO5
	严成锋 ; 赵广军 ; 张连翰 ; 徐军
刊名	无机材料学报
	2005
卷号	20 期号:6 页码:1301
关键词	LYSO LYSO crystal 闪烁晶体 scintillator 提拉法 Czochralski method 光学特性 characterization
ISSN号	1000-324X
其他题名	Crystal growth and optical characterization of Large-sized cerium-doped Lu1.6Y0.4SiO5
中文摘要	采用中频感应提拉法生长出尺寸为Ф60mm×110mm的Ce：Lu1.6Y0.4SiO5（LYSO）晶体,与LSO晶体相比,LYSO晶体的优势是提高了晶体质量、降低了熔点和原料成本等.在室温下测试了LYSO晶体的透过光谱、激发光谱和发射光谱,结果表明Y的加入使LSO晶体的吸收边向短波方向偏移.Ce^3＋的4f^1→5d^1跃迁吸收导致紫外区产生三个吸收带.发射光谱具有Ce^3＋典型的双峰特征,经Gaussian多峰值拟合,双峰395nm和418nm归属于Ce1发光中心,而435nm的发光峰与Ce2发光中心有; Cerium-doped Lu1.6Y0.4SiO5 (LYSO) crystal with a dimension of phi 60mm X 110mm was grown by the Czochralski method. Advantages of LYSO Czochralski growth relative to LSO include reduced melting point, less propensity for formation of crystalline inclusions, lower cost of starting material. Its optical transmission, excitation and emission spectra of LYSO crystal were measured at room temperature. Results indicate that with the yttrium ion doping, absorption edge of LSO crystal is shifted towards short wavelength. Three absorption bands of LYSO are formed, which assign to the Ce3+ 4f(1) -> 5d(1) transitions at room temperature. The Gaussian fits to the emission spectra of LYSO crystal excited with 358nm, show band characteristics with two peaks of 395 and 418nm, which assign to Ce1 site, and with the emission peak at 435nm, to Ce2 site.
学科主题	光学材料;晶体
分类号	O782
收录类别	ei
语种	中文
公开日期	2009-09-24
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/5483]
专题	上海光学精密机械研究所_激光与光电子功能材料研发中心
推荐引用方式 GB/T 7714	严成锋,赵广军,张连翰,等. 大尺寸Ce：Lu1.6Y0.4SiO5闪烁晶体的生长和光谱特性, Crystal growth and optical characterization of Large-sized cerium-doped Lu1.6Y0.4SiO5[J]. 无机材料学报,2005,20(6):1301, 1305.
APA	严成锋,赵广军,张连翰,&徐军.(2005).大尺寸Ce：Lu1.6Y0.4SiO5闪烁晶体的生长和光谱特性.无机材料学报,20(6),1301.
MLA	严成锋,et al."大尺寸Ce：Lu1.6Y0.4SiO5闪烁晶体的生长和光谱特性".无机材料学报 20.6(2005):1301.