[1] Ma Hongru.Third order opticalnonlinearity enhancement through composite microstructure. Proceedings of 9th NationalConference on Condensed Matter Theory and Statistical Physics～(in Chinese),1997, p103

[2] Baba K, Okuno T, Miyagi M. Silver-gold compound metal island films prepared byusing a two-step evaporation method. Appl. Phys. Lett., 1993, 62: 437

[3] Baba K, Okuno T, Miyagi M. Resonance wavelengths of silver-gold compound metalisland films. J. Opt. Soc. Am. B, 1995, 12: 2372

[4] Sheng P. Theory for the dielectric function of granular composite media. Phys. Rev.Lett., 1980, 45: 60

[5] Nicorovici N A, Mckenzie D R, Mcphedran R C. Optical resonances of three-phasecomposites and anomalies in transmission. Opt. Commun., 1995, 117: 151

[6] Luo Renjun. Effective medium theories for the optical properties of three-componentcomposite materials. Appl. Opt., 1997, 36: 8153

[7] John P B, Christy R W. Optical constants of the nobel metals. Phys. Rev. B, 1972,6: 4370