基于矢量衍射理论,计算了多个可见光波段激光经紧聚焦后在焦点附近的双光子点扩散函数.计算结果表明,双光子吸收效应的作用区域随着波长的减小而减小.采用多个可见光波段飞秒激光光源进行了双光子光聚合加工,并对加工分辨率和加工阈值进行了分析.实验结果表明,在每个激光波长条件下,降低光子流密度能够提高加工分辨率;随着加工波长的减小,双光子跃迁过程逐渐满足近共振跃迁条件,双光子吸收几率逐渐增大,双光子加工的阈值逐渐降低.
参考文献
| [1] | Dong Xianzi,Chen Weiqiang,Zhao Zhensheng,et al.Femtosecond pulse laser two-photon micro/nanofabrication technology and its applications[J].Chinese Science Bulletin(科学通报), 2008,53(1):2-13 (in Chinese).,2008. |
| [2] | 李焱,蒋红兵,杨宏,龚旗煌.透明材料飞秒激光三维微制备[J].量子电子学报,2004(02):188-193. |
| [3] | Kawata S,Sun H B,Tanaka T,et al.Finer features for functional microdevices[J].Nature,2001,412(6848):697-698.,2001. |
| [4] | Dong Xianzi,Zhao Zhensheng,Duan Xuanming.Improving spatial resolution and reducing aspect ratio in multiphoton polymerization nanofabrication[J].Appl.Phys.Lett.,2008,92(9):091113.,2008. |
| [5] | Dong Xianzi,Ya Qi,Sheng Xinzhi,et al.Photonic bandgap of gradient quasidiamond lattice photonic crystal[J].Appl.Phys.Lett.,2008,92(23):231103.,2008. |
| [6] | Wang Weikang,Sun Zhengbin,Zheng Meiling,et al.Magnetic nickel-phosphorus/polymer composite and remotely driven three-dimensional micromachine fabricated by nanoplating and two-photon polymerization[J].J.Phys.Chem.C,2011,115(22):11275-11281.,2011. |
| [7] | Wu Dong,Chen Qidai,Niu Ligang,et al.Femtosecond laser rapid prototyping of nanoshells and suspending components towards microfluidic devices[J].Lab.Chip.,2009,9(16):2391-2394.,2009. |
| [8] | Wu Dong,Wu Sizhu,Niu Ligang,et al.High numerical aperture microlens arrays of close packing[J].Appl.Phys.Lett.,2010,97(3):031109.,2010. |
| [9] | Li Chunfang,Dong Xianzi,Jin Feng,et al.Polymeric distributed-feedback resonator with sub-micrometer fibers fabricated by two-photon induced photopolymerization[J].Appl.Phys.A,2007,89:145-148.,2007. |
| [10] | Liu Zhaopei,Li Yan,Xiao Yunfeng,et al.Direct laser writing of whispering gallery microcavities by two-photon polymerization[J].Appl.Phys.Lett.,2010,97(21):211105.,2010. |
| [11] | Stamnes J J.Waves in Focal Regions:Propagation,Diffraction,and Focusing of Light,Sound,and Water Waves[M].Taylor & Francis,1986.,1986. |
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%