Raman Spectra Analysis of Nd∶YAG Single Crystal and Its Nano-Powder
SU Jing1, ZHANG Qing-li2, YIN Shao-tang2, SUN Dun-lu2, SHAO Shu-fang2
1. College of Math and Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China 2. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
Abstract：In the present paper, the authors measured the Raman spectra of YAG/Nd∶YAG single crystal, Nd∶YAG precursor and the powder sintered at different temperatures. The bands of these Raman spectra were assigned and analyzed. The results show that there is a structure transformation process in the course of sintering Nd∶YAG precursor. The powder sintered at 700 ℃ was amorphous and it is of AlO4 tetrahedron structure. With the increase in sintering temperatures, the Raman spectra varied mainly in two respects. One is the decrease in FWHM with the increase in the bands intensity; the other is the bands shift. These should be due to the increase in the order degree of the interface component. Additionally, the difference in the lattice vibration modes between the powders sintered at 800 ℃ and the Nd∶YAG single crystal powder was caused by the contribution of the interface component.
[1] Ikesue A, Kinoshita T, Kamata K, et al. J. Am. Ceram. Soc., 1995, 78(4): 1033. [2] Lu J R, Prabhu M, Xu J, et al. Appl. Phys. Lett., 2000, 77 (23): 3707. [3] Lu J R, Prabhu M, Ueda K, et al. Laser Physics，2001, 11: 1053. [4] Lu J R, Ueda K, Yagi H, et al. Journal of Alloys and Compounds, 2002, 341: 220. [5] Hurrell J P, Porto S P S, Chang I F, et al. Phys. Rev., 1968, 173(3): 851. [6] Wadsack R L, Lewis Joan L, Argyle B E. Phys. Rev. B, 1971, 3(12): 4342. [7] Papagelis K, Kanellis G, Ves S, et al. Phys. Stat. Sol. (b)，2002, 233(1): 134. [8] Chen Y F, Lim P K, Lim S J, et al. J. Raman Spectrosc.，2003; 34: 882. [9] SU Jing, ZHANG Qing-li, GU Chang-jiang, et al(苏 静，张庆礼，谷长江，等). Journal of Functional Materials(功能材料), 2005, 36(5): 717. [10] Kato S, Iga T, Hatano S, et al. Yogyo-Kyokai-Shi., 1976, 84(5): 215. [11] Saito N, Matsuda S, Ikegami T. J. Am. Ceram. Soc., 1998, 81(8): 2023. [12] Sordelet D J, Akinc M. Colloids Int. Sci., 1988, 122(1): 47. [13] Morgan H W, Staats P A. J. Applied Physics, 1962, 33: 364. [14] HOU Huai-yu, YOU Jing-lin, WU Yong-quan, et al(侯怀宇，尤静林，吴永全，等). Chinese Journal of Light Scatting(光散射学报), 2001, 13(3): 162. [15] Alben R, Weaire D, Smith Jr J E, et al. Phys. Rev. (B), 1975, 11(6): 2271. [16] SUN Ping, XIONG Bo, ZHANG Guo-qing, et al(孙 萍，熊 波，张国青，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2007，27(1): 143. [17] ZHANG Zhong-suo, ZHANG Xing-tang, CHEN Yan-hui, et al(张忠锁，张兴堂，陈艳辉，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2003，23(1): 98. [18] WU Zheng-kai, TANG Ao-qing(吴征铠，唐敖庆). Monograph of Molecular Spectroscopy(分子光谱专论). Ji’nan: Shandong Scientific and Technology Press(济南：山东科技出版社), 1999. 2129. [19] ZHANG Li-de, MOU Ji-mei(张立德，牟季美). Nano-Materials and Nano-Structures(纳米材料和纳米结构). Beijing: Science Press(北京：科学出版社), 2001. 227.
