【摘要】 不同衬底银膜表面等离子激元波的辐射效率邓里文王恭明（复旦大学物理系上海２００４３３）ＥｆｉｃｉｅｎｃｙｏｆＥｍｉｓｉｏｎｆｒｏｍＳｕｒｆａｃｅＰｌａｓｍｏｎＷａｖｅｓｆｏｒＤｉｆｅｒｅｎｔＳｔｒｕｃｔｕｒｅｓｏｆＡｇＦｉｌｍｓＤｅｎｇＬｉｗｅｎ，Ｗａ...更多还原

【Abstract】 Abstract The attenuated total reflection technique was used to excite surface plasmon. We have measured the efficiencies of the surface plasmon energy emitted through surface roughness into air side, for prism/LB film or Ag film/Ag film/air and prism/Ag film/air structures. Depending on the distribution of scattering light intensity, the surface roughness parameters, i.e. the transverse correlation length σ and the surface corrugation depth δ of air/Ag film interface was simultaneously evaluated. Then we calculated the efficiency of conversion of the surface plasmon polariton energy from σ and δ. The calculating efficiency is correspond with that of experiment.更多还原