钬铥双掺钨酸镱钾激光晶体光谱参数计算

钬铥双掺钨酸镱钾激光晶体光谱参数计算 Spectral Parameter Calculation of Ho 3+ , Tm 3+ Co-doped KYb(WO 4 ) 2 Laser Crystal 毕琳 BI Lin 2 first-author 底晓强 DI Xiao-qiang 2 赵建平 ZHAO Jian-ping 2 李春 LI Chun 1 刘景和 LIU Jing-he 1 长春理工大学 材料科学与工程学院, 吉林 长春 130022 长春理工大学 材料科学与工程学院, 吉林 长春 130022 School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China 长春理工大学 计算机科学技术学院,吉林 长春,130022 长春理工大学 计算机科学技术学院,吉林 长春,130022 School of Computer Science and Technology, Changchun University of Science and Technology, Changchun 130022, China School of Computer Science and Technology, Changchun University of Science and Technology, Changchun 130022, China 采用顶部籽晶提拉法（TSSG）生长了钬铥双掺钨酸镱钾（KHo 0.04 Tm 0.06 Yb 0.9 （WO 4 ） 2 ）激光晶体。测试了该晶体的吸收及荧光光谱，计算了其光谱参数。实验结果表明：该晶体在890~1 000 nm范围吸收带较宽，半峰宽为90 nm，计算了主峰1 000 nm处吸收截面为16.9210 -20 cm 2 ；Tm 3+ 在1 690~1 812 nm范围存在较宽的吸收带，半峰宽为118 nm，易于实现YbHo、YbTm、TmHo的能量传递。根据Judd-Ofelt理论，计算了该晶体的光谱强度参数。根据Tm 3+ 、Ho 3+ 、Yb 3+ 离子能级图，讨论了产生1 750~2 200 nm荧光发射的3种能量传递方式。最后计算了主峰2 030 nm处受激发射截面为3.4710 -20 cm 2 ，表明该晶体可作为2 m波段优异的激光增益介质。 KHo 0.04 Tm 0.06 Yb 0.9 (WO 4 ) 2 laser crystal was grown by the top seeded solution growth (TSSG) method. The absorption and fluorescent spectra of the crystal were measured, and the spectral parameters were calculated, too. The experimental results show that there is a broader absorption band at the range of 890-1 000 nm with a full width at half maximum (FWHM) of 90 nm. The absorption cross section of main emission peak at 1 000 nm is 16.9210 -20 cm 2 . Meanwhile, Tm 3+ ions in the crystal have a wider absorption band at 1 690-1 812 nm with a FWHM of 118 nm. Therefore, the energy transfer of YbHo, YbTm, TmHo can be easily achieved. The spectral strength parameters of the crystal were calculated based on the Judd-Ofelt theory. According to the energy level diagram of Tm 3+ , Ho 3+ and Yb 3+ ions, three kinds of energy transfer modes at 1 750-2 200 nm emission were discussed. The stimulated emission cross section of main emission peak at 2 030 nm is 3.4710 -20 cm 2 , which indicates that the crystal can be used as an excellent laser gain medium at the range of 2 m. KHo 0.04 Tm 0.06 Yb 0.9 (WO 4 ) 2 激光晶体 吸收光谱 荧光光谱 光谱参数计算 laser crystal absorption spectrum fluorescent spectrum spectral parameter calculation 袁云松, 吴从越, 李雨芬, 等. 铥、镱共掺可见光响应型纳米TiO2光催化剂的制备及性能表征[J]. 发光学报, 2016, 37(11):1310-1315. YUAN Y S, WU C Y, LI Y F, et al.. Preparation and characterization of TiO2:Tm, Yb visible light responsive nano-photocatalyst[J]. Chin. J. Lumin., 2016, 37(11):1310-1315. (in Chinese) 孙超, 朱忠丽, 张莹. 低温燃烧法制备的Ho:YbGG多晶粉体及其发光性能[J].发光学报, 2014, 35(9):1065-1070. SUN C, ZHU Z L, ZHANG Y. Ho:YbGG polycrystal powder synthesized by low temperature combustion method and its luminescent characteristics[J]. Chin. J. Lumin., 2014, 35(9):1065-1070. (in Chinese) 付作岭, 董晓睿, 盛天琦, 等. 纳米晶体中稀土离子的发光性质及其变化机理研究[J]. 中国光学, 2015, 8(1):139-144. FU Z L, DONG X R, SHENG T Q, et al.. Luminescene properties and various mechanisms of rare earth ions in the nanocrystals[J]. Chin. Opt., 2015, 8(1):139-144. (in Chinese) 任国光, 黄裕年. 用激光红外干扰系统保护军用和民航机[J].激光与红外,2006, 36(1):1-6. REN G G, HUANG Y N. Laser-based IRCM system defenses for military and commercial aircraft[J]. Laser & Infrared, 2006, 36(1):1-6. (in Chinese) VODOPYANOV K L, STAFSUDD R. Generation of Q-switched Er:YAG laser pulse evanescent wave absorption in ethanol[J]. Appl. Phys. Lett., 1998, 72:2211. SRINIVASAN B, TAFOYA J, JAIN R K. High-power "watt-level" CW operation of diode-pumped 2.7m fiber laser using efficient cross-relaxation and energy transfer mechanisms[J]. Opt. Experess, 1999, 4:495. REMSKI R, JAMES L T, GOOEN K H. Pulsed laser action in LiYF4:Er3+,Ho3+ at 77 K[J]. IEEE Quant. Electron., 1969, 5(4):214. IMAI S, YAMADA T, FUJIMORI Y, et al.. A 20 W Cr3+, Tm3+, Ho3+:YAG laser[J]. Opt. Laser Technol., 1990, 22(5):351-353. 姚宝权, 董力强, 王月珠, 等. 激光二极管抽运Tm,Ho:YLF微片激光器的实验研究[J].光学学报,2004, 24(1):79-83. YAO B Q, DONG L Q, WANG Y Z, et al.. Experimental study of microchip (Tm, Ho):YLF laser pumped by laser diode[J]. Acta Opt. Sinica, 2004, 24(1):79-83. (in Chinese) 何晓敏, 张新陆, 王月珠, 等. 激光二极管泵浦室温Tm,Ho:YLF微片激光器的实验研究[J].激光与红外, 2005, 35(9):367-340. HE X M, ZHANG X L, WANG Y Z, et al.. Experimental study of laser-diode pumped room temperature Tm, Ho:YLF microchip laser[J]. Laser & Infrared, 2005, 35(9):367-340. (in Chinese) 张兴宝, 姚宝权, 王月珠, 等. 准四能级双掺Tm/Ho钒酸钆激光器[J].激光技术, 2006, 30(2):119-122. ZHANG X B, YAO B Q, WANG Y Z, et al.. Quasi-four-level co-doped Tm/Ho gadolinium vanadate laser[J]. Laser Technol., 2006, 30(2):119-122. (in Chinese) BRENIER A. A new evaluation of Yb3+-doped crystals for laser applications[J]. J. Lumin., 2001, 92:199-201. 张莹, 刘景和, 李春, 等.高浓度铒离子掺杂钨酸镱钾激光晶体上转换发光研究[J]. 激光与红外工程,2012, 41(9):2322-2327. ZHANG Y, LIU J H, LI C, et al.. Up-conversion luminescence of highly Er3+-doped potassium ytterbium tungstate laser crystal[J]. Infrared Laser Eng., 2012, 41(9):2322-2327. (in Chinese) KLOPP P, GRIEBNER U, PETROV V, et al.. Laser operation of the new stoichiometric crystal KYb(WO4)2[J]. Appl. Phys. B, 2002, 74:185-189. MATEOS X, PUJOL M C, GVELL F, et al.. Sensitization of Er3+ emission at 1.5m by Yb3+ in KYb(WO4)2 single crystals[J]. Phys. Rev. B, 2002, 66:214104. LOIKO P A, VILEJSHIKOVA E V, MATEOS X, et al.. Europium doping in monoclinic KYb(WO4)2 crystal[J]. J. Lumin., 2017, 183:217-225. LOIKO P, MATEOS X, DUNINA E, et al.. Judd-Ofelt modelling and stimulated-emission cross-sections for Tb3+ ions in monoclinic KYb(WO4)2 crystal[J]. J. Lumin., 2017, 190:37-44. 王宇明, 张礼杰, 雷鸣, 等. 泡生法生长KYb(WO4)2晶体及其结构与光谱性能[J].中国激光, 2006, 33(5):697-700. WANG Y M, ZHANG L J, LEI M, et al.. Structure and spectra characteristics of KYb(WO4)2 crystal grown by Kyropoulos method[J]. Chin. J. Lasers, 2006, 33(5):697-700. (in Chinese) SARDAR D K, RUSSELL CC, YOW R M, et al.. Spectroscopic analysis of the Er3+ (4f11) absorption intensities in NaBi(WO4)2[J]. Appl. Phys., 2004, 95(31):1180-1184. JUDD B R. Optical absorption intensities of rare-earth ions[J]. Phys. Rev., 1962, 127:750. OFELT G S. Intensities of crystal spectra of rare earth ions[J]. J. Chem. Phys., 1962, 37:511. 10.3788/fgxb20183905.0615 O482.31 吉林省科技发展计划（20160414043GH）;吉林省教育厅“十三五”科学技术研究项目（2016-379）资助 Supported by Jilin Provincial S&T Development Plan Project of China (20160414043GH);The 13th Five-year S&T Research Project of Jilin Provincial Education Department of China (2016-379) 2017-09-05 2017-10-24 2017-09-11 2018-05-05 2020-08-11 5 39