| Phase transformation and nanograting structure on TiO2 rutile single crystal induced by infrared femtosecond laser |
| |
| 作者姓名： | 马洪良 杨俊毅 鲁波 马国宏 |
| |
| 作者单位： | [1]Instrumental Analysis ＆ Research Center,Shanghai University, Shanghai200444,China [2]Department of Physics．Shanghai University,Shanghai 200444,China |
| |
| 基金项目： | Project supported by Shanghai Leading Academic Discipline Project, China （Grant No T0104）, the Shanghai Nano-technology Promotion Center and Science ＆ Technology of Shanghai Municipality, China （Grant No 0652nm005）, Science Foundation of Shanghai Municipal Commission Education and Science and Technology Commission of Shanghai Municipal, China （Grant No 06PJ14042）. |
| |
| 摘 要： | In this paper, TitaiJum dioxide （TiO2） rutile single crystal was irradiated by infrared femtosecond laser pulses with repetition rate of 250 kHz. For a P-polarized femtosecond laser, the periodic nanograting structure on the ablation crater surface was formed . The periodicity is much less than the laser wavelength. The direction of nanograting alignment depends on the polarization laser beam. Micro-Raman spectra show that the intensity of Eg Raman vibrating mode of rutile phase increases and that of Alg Raman vibrating mode decreases apparently within the ablation crater. With the increase of irradiation time and laser average power, the Raman vibrating modes of anatase phase emerged. Rutile phase of TiO2 single crystal is partly transformed into anatase phase.第一段]
|
| 关 键 词： | 红外线激光 二氧化钛单晶体 相位转换 拉曼光谱学 |
| 文章编号： | 1009-1963/2007/16（11）/3328-04 |
| 修稿时间： | 2007-01-04 |
Phase transformation and nanograting structure on TiO2 rutile single crystal induced by infrared femtosecond laser |
| |
| Ma Hong-Liang,Yang Jun-Yi,Lu Bo and Ma Guo-Hong.Phase transformation and nanograting structure on TiO2 rutile single crystal induced by infrared femtosecond laser[J].Chinese Physics B,2007,16(11):3328-3331. |
| |
| Authors: | Ma Hong-Liang Yang Jun-Yi Lu Bo and Ma Guo-Hong |
| |
| Abstract: | |
| |
| Keywords: | infrared femtosecond laser titanium dioxide single crystal phase transformation micro-Raman spectroscopy |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
