[1] BREITLING D,RUF A,DAUSINGER F.Photon processing in microelectronics and photonics Ⅲ[J].Proc SPIE,2004,5339:49-63.
[2] JACKSON M J,NEILL W O.Laser micro-drilling of tool steel using Nd:YAG lasers[J].Journal of Materials Processing Technology,2003,142(2):517-525.
[3] BREITLING D,SCHITTENHELM H,BERGER P,et al.Shadowgraphic and interferometric investigations on Nd:YAG laser-induced vapor/plasma plumes for different processing wavelengths[J].Appl Phys,1999,A69(s1):505-508.
[4] KLIMENTOV S M,KONONENKO T V,PIVOVAROV P A,et al.Roleof gas environment in the process of deep-hole drilling by ultrashort laser pulses[J].Proc SPIE,2003,4830:515-520.
[5] FIERET J,TERRY M J,WARD B A.Aerodynamic interactions during laser cutting[J].Proc SPIE,1986,668:53-62.
[6] ST-ONGE L,DETALLE V,SABSABI M.Enhanced laser-inducedbreakdown spectroscopy using the combination of fourth-harmonic and fundamental Nd:YAG laser pulses[J].Spectrochimica Acta,2002,B57(1):121-135.
[7] SCAFFIDI J M,ANGEL S,CREMERS D A.Emission enhancementmechanisms in dual-pulse LIBS[J].Analytical Chemistry,2006,78(1):24-32.
[8] STRATIS D N,ELAND K L,ANGEL S M.Effect of pulse delay time on a pre-ablation dual-pulse LIBS plasma[J].Applied Spectroscopy,2001,55(10):1297-1303.
[9] SATTMANN R,STURM V,NOLL R.Laser-induced breakdown spectroscopy of steel samples using multiple Q-switch Nd:YAG laser pulses[J].J Phys,1995,D28(10):2181-2187.
[10] LEHANE C,KWOK H S.Enhanced drilling using a dual-pulse Nd:YAG laser[J].Appl Phys,2001,A73(1):45-48.
[11] WANG J J.Laser processing technique[M].Beijing:China Metrology Pubeishing House,1992:114-115(in Chinese).
[12] PETTER L,NOLL R.Material ablation and plasma state for single and collinear double pulses interacting with iron samples at ambient gas pressures below 1bar[J].Appl Phys,2007,B86(1):159-167.