本文报道了室温下飞秒激光辐照Tm∶ YAG晶体的紫外光上转换荧光.Tm3+荧光的强度与泵浦光的功率之间的依赖关系揭示了晶体的上转换过程由三光子吸收过程所主导.研究表明上能级粒子的增加来自于Tm3+吸收一个泵浦光子跃迁到3H4能级后再吸收两个泵浦光子,然后离子跃迁至下能级产生上转换荧光.
The ultraviolet upconversion luminescence from 1 I6 state of Tm3 + at room temperature observed in Tm∶ YAG crystal by femtosecond laser irradiation. The dependence of the intensity of the Tm3+ emission on the pump power reveals that the three-photon excitation is dominant in the upconversion process.It is suggested that one-photon excitation to 3H4 level followed by a two-photon absorption produces,the population of upper laser level in which the characteristic luminescence occurs.
参考文献
| [1] | You H;Hayakawa T;Nogami M .Upconversion luminescence of Al2O3-SiO2 : Ce3+ glass by femtosecond laser irradiation[J].Applied physics letters,2004(16):3432-3434. |
| [2] | Hongpeng You;Masayuki Nogami .Three-photon-excited fluorescence of Al_(2)O_(3)-SiO_(2) glass containing Eu~(3+) ions by femtosecond laser irradiation[J].Applied physics letters,2004(12):2076-2078. |
| [3] | Yang L Y;Dong Y J;Chen D P et al.Three-photon-excited Upconversion Luminescence of Ce3 +:YAP Crystal by Femtosecond Laser Irradiation[J].Optics Express,2006,14(01):243-247. |
| [4] | Yang L Y;Dong Y J;Chen D P et al.Upconversion Luminescence from 2E State of Cr3 + in Al2O3 Crystal by Infrared Femtosecond Laser Irradiation[J].Optics Express,2005,13(20):7893-7898. |
| [5] | Xinshun Wang;Jianrong Qiu;Juan Song;Jian Xu;Yang Liao;Haiyi Sun;Ya Cheng;Zhizhan Xu .Simultaneous three-photon absorption induced ultraviolet upconversion in Pr~(3+):Y_(2)SiO_(5) crystal by femtosecond laser irradiation[J].Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter,2008(2):299-302. |
| [6] | Huidan Zeng;Zhenyu Lin;Qiang Zhang;Danping Chen;Xiaoluan Liang;Yinsheng Xu;Guorong Chen .Green emission from Eu~(2+)/Dy~(3+) codoped SrO-Al_2O_3-B_2O_3 glass-ceramic by ultraviolet light and femtosecond laser irradiation[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2011(2):319-322. |
| [7] | Hebert T;Wannemacher R;Macfarlane R M et al.Blue continuously Pumped Upconversion Lasing in Tm∶YLiF4[J].Applied Physics Letters,1992,60(21):2592-2594. |
| [8] | Thrash R J;Johnson L F .Upconversion Laser Emission from Yb3+-sensitized Tm3+ in BaY2F8[J].Journal of the Optical Society of America B:Optical Crystal Physics,1994,11(05):881-885. |
| [9] | Kishimoto S.;Hirao K. .INTENSE ULTRAVIOLET AND BLUE UPCONVERSION FLUORESCENCE IN TM3+-DOPED FLUOROINDATE GLASSES[J].Journal of Applied Physics,1996(4):1965-1969. |
| [10] | Hirao K;Tanabe S;Kishimoto S et al.UV and Blue Upconversion in Tm3+-doped Fluoroaluminate Glass by0.655 μm Excitation[J].Journal of Non-Crystalline Solids,1991,135(01):90-93. |
| [11] | Ortiz CP;Boye DM .Pulsed upconversion of Tm3+-doped sol-gel silicate glasses[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2008(5-6):894-896. |
| [12] | Hirao K;Tamai K;Tanabe S et al.Frequency Upconversion and Its New Mechanism in Tm3 +-doped Fluoronluminate Glasses[J].Journal of Non-Crystalline Solids,1993,160(03):261-267. |
| [13] | Song PX;Zhao ZW;Xu XD;Jang BX;Deng PZ;Xu J .Growth and properties of Tm : YAG crystals[J].Journal of Crystal Growth,2004(3/4):433-437. |
| [14] | Tsuboi T;Murayama H;Shimamura K .Low Temperature Luminescence of Tm3+ lons in LiYF4 Crystal[J].Journal of Alloys and Compounds,2006,408-412:776-779. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%