4Satoshi Kawata, Sun Hong -Bo, Tomokazu Tanaka,et al. Finer fea- tures for functional microdevices. [J]. Nature,2001,412:697 -698.
5Nohe S, Chichkov B N, Welling H,et al. Nanostructuring with spatially lo- calized femtosecond laser pulses [J]. Opt. Lett., 1999,24(13) : 914 -916.
6Venkatakfishnan K, Ngoi B K A, Stanley P, et al. Laser writing tech- niques for photomask fabrication using a femtosecond laser [J] . Appl. Phys. A,2002,74:493 -496.
7Banks P S, Stuart B C, Perry M D, et al. Femtosecond laser machining [J]. Lasers and Electro - Optics, 1998, CLEO' 98 : 510.
8Juhasz T,Loesel F H,Kurtz R M,et al. Corneal refractive surgery with femtosecond lasers [J]. IEEE Journal Selected Topics in Quantum Elec- tronics, 1999, 5(4) :902 -910.
