| 两种新型有机染料的双光子上转换特性研究 |
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| 引用本文： | 徐丽华,杨庆鑫,潘凌云,杨延强,孙桂娟,蒋占魁,李英,杨帆. 两种新型有机染料的双光子上转换特性研究[J]. 光子学报, 2005, 34(3): 350-353 |
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| 作者姓名： | 徐丽华 杨庆鑫 潘凌云 杨延强 孙桂娟 蒋占魁 李英 杨帆 |
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| 作者单位： | 吉林大学物理学院,长春,130023;相干光与原子分子光谱教育部重点实验室,长春,130023;华东师范大学化学系,上海,200062 |
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| 摘 要： | 通过对两种新型有机染料上转换材料CEASP-Ce与CEASPI的测试，研究了它们的双光子吸收、频率上转换特性.实验利用930 nm的红外激光泵浦两种染料溶液可得到 610 nm左右的上转换荧光.当提高浓度时，会得到方向性好、强度高、窄线宽的放大自发辐射（ASE）.通过对两种染料双光子光谱及上转换效率的比较，考察稀土离子对于有机物双光子上转换过程的影响.
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| 关 键 词： | 有机染料 双光子 上转换 放大自发辐射 |
| 收稿时间： | 2003-12-25 |
| 修稿时间： | 2003-12-25 |
Study on the Two-photon Frequency Upconversion Property of Two New Organic Dyes |
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| Xu Lihua,Yang Qingxin,Pan Lingyun,Yang Yanqiang,Sun Guijuan,Jiang Zhankui,Li Ying,Yang Fan. Study on the Two-photon Frequency Upconversion Property of Two New Organic Dyes[J]. Acta Photonica Sinica, 2005, 34(3): 350-353 |
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| Authors: | Xu Lihua Yang Qingxin Pan Lingyun Yang Yanqiang Sun Guijuan Jiang Zhankui Li Ying Yang Fan |
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| Affiliation: | 1 College of Physics, Jilin University, Changchun 130023;2 Key Lab for Coherent Light and Atomic Molecular Spectroscopy of Education Ministry, Changchun 130023;3 Department of Chemistry, Huadong Normal University, Shanghai 200062 |
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| Abstract: | Two-photon absorpuion and frequency upconversion properties of CEASP-Ce and CEASPI dye solutions have been measured. The upconversion fluorescence was measured to be around 610 nm when the two dyes were pumped with 930 nm laser. A good directional, high efficiency, narrow spectral width amplified spontaneous emission(ASE)could been observed when the concentration of the dyes were increased. The output verse input efficiency of the two dyes was different, but the overall net upconversion of them pumped by 975 nm laser reached about 20%. A comparison was made between the two samples though their different parameters, a result can be concluded from the structure of two samples that Ce~3+ affects the process of ASE by enhancing the absorption cross section. |
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| Keywords: | Organic dye Two photon Upconversion ASE |
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