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公开(公告)号:US5073725A
公开(公告)日:1991-12-17
申请号:US625355
申请日:1990-12-11
CPC分类号: G02F1/37
摘要: A metal surface plasmon is excited in a multi-layered film composed of thin metal films and a thin dielectric film, by light having a propagation constant larger than that of the incident light emitted from an optical component such as a prism. Due to an extremely strong alternating electric field produced by the electric field enhancement effect of the metal surface plasmon, a harmonic is generated from a nonlinear optical crystal.