中国物理B ›› 2012, Vol. 21 ›› Issue (2): 25201-025201.doi: 10.1088/1674-1056/21/2/025201

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

戴晔,余光军,武国睿,马洪良,阎晓娜,马国宏   

  • 收稿日期:2011-07-19 修回日期:2011-08-15 出版日期:2012-01-30 发布日期:2012-01-30
  • 通讯作者: 戴晔,yedai@shu.edu.cn E-mail:yedai@shu.edu.cn

The effect of spherical aberration on temperature distribution inside glass by irradiation of a high repetition rate femtosecond pulse laser

Dai Ye(戴晔), Yu Guang-Jun(余光军), Wu Guo-Rui(武国睿), Ma Hong-Liang(马洪良), Yan Xiao-Na(阎晓娜), and Ma Guo-Hong(马国宏)   

  1. Department of Physics, Shanghai University, Shanghai 200444, China
  • Received:2011-07-19 Revised:2011-08-15 Online:2012-01-30 Published:2012-01-30
  • Contact: Dai Ye,yedai@shu.edu.cn E-mail:yedai@shu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 60908007) and the Shanghai Leading Academic Discipline Project, China (Grant No. S30105).

Abstract: In this paper, we study the effect of spherical aberrations on the light intensity and the temperature distribution in the focal region in a 250-kHz femtosecond laser irradiated Ag+-doped borosilicate glass. When a focused beam goes through an interface between air and glass, spherical aberration will result in the separation of the focal point and then cause a clear change of the light intensity distribution along the incident direction. That phenomenon will further influence the longitudinal cross-section temperature distribution in glass. Here we use Ag nanoparticle formation as a marker for establishing temperature distribution and we find that the formation of nanoparticle shows a strong dependence on the temperature field and the detailed precipitation process is also discussed.

Key words: femtosecond laser, glass, spherical aberration, heat accumulation effect

中图分类号:  (Laser ablation)

  • 52.38.Mf
42.15.Fr (Aberrations) 78.20.nb (Photothermal effects) 82.60.Nh (Thermodynamics of nucleation)