1Yau T W, Lee C H, Wang J. Uncollapsed self focusing of femtosecond pulses in dielctric media due to the saturation of nonlinear refractive index. CLEO , 2000. 1 - 3.
2kajihara K, Ikuta Y, Hirano M, et al. Power dependence of defect formation in SiO2 by F2 laser irradiation. Appl Phy Lett, 2002, 81(17) :3164 -3166.
3Cheng Guanghua, Wang Yishan, White J D, et al.Demonstration of high-density three-dimensional storage in fused silica by femtosecond laser pulses. J of Appl Phys,2003, accepted.
4Strltsov A M, BorreUi N F. Study of femtosecond-laserwritten waveguides in glasses. JOSA (B), 2002, 19 ( 10 ) :2496 - 2504.
5Glezer E N, Mazur E. Ultrafast-laser driven microexplosions in transparent materials. Appl Phys Leu, 1997 ,71(4) :882 -884.
6Fan Ch H, Longtin J P. Modeling optical breakdown in dielectrics during ultrafast laser processing. Appl Opt, 2001,40(18) : 3124 -3131.
7Du D, Liu X, Korn G, et al. Laser-induced breakdown by impact ionization in SiO2 with pulse widths from 7 ns to 150 fs.Appl Phys Lea,1997,33(10) : 1706 -1716.
8Noack J, Vogel A. Laser-induced plasma formation in wate rat nanosecond to femtoaecond time acalea: calculation of thresholds, absorption coeificients, and energy demity.IEEE J of Quant Elec, 1999,35(8) :1156 -1167.
9Luo L, Wang DL, Li CD, et al. Formation of diversiform microstructures in wide-bandgap materials by tight-focusing femtosecond laser pusles.J Opt(A) Pure Appl Opt, 2002, 4(1):105-110.
10Hansch P, Walker M A, Woerkom L D V. Spatially dependent multiphoton multiple ionization. Physicss Review(A), 1996, 54(4) :R2559 - R2563.