第二章表面等离激元的发展、前沿及应用(1-43)2.1表面等离激元发展简史2.2表面等离激元的应用2.2.1表面等离激元（SPP）波导（45-65）及应用(SPR)(67-96)2.2.2表面等离激元共振(98-112)2.2.3周期性结构中SPP性质2
2 第二章 表面等离激元的发展、前沿及应用 2.1 表面等离激元发展简史 （1-43） 2.2 表面等离激元的应用 2.2.1 表面等离激元（SPP）波导（45-65） 2.2.2 表面等离激元共振（SPR）及应用（67-96） 2.2.3 周期性结构中SPP性质 （98-112）
金和银的介电常数值0gold10silver520Gold330Silver240-50.60060040080040080020010002001000wavelengthwavelengthOpticalConstantsof theNobleMetalsP.B,Johnson and R.W.ChristyPRB,6,4370(1972)3
3 200 400 600 800 1000 -50 -40 -30 -20 -10 0 200 400 600 800 1000 0 1 2 3 4 5 6 7 Real dielectric constant wavelength Gold Silver Imaginay dielectric constant) wavelength gold silver PRB, 6, 4370 (1972). 金和银的介电常数值
（按年代）2.1表面等离激元发展简史Wood'sanomalies,1902Fig.1,VELENGTHOnaRemarkableCaseof UnevenDistributionof Light inaDiffractionGratingSpectrumRWWood1902Proc.Phys.Soc.London18269SURFACE-PLASMONRESONANCEEFFECTINGRATINGDIFFRACTIONRITCHIERH,ARAKAWAET,COWANJJ,etal（1968）PRL,21,1530
4 Wood’s anomalies，1902 2.1 表面等离激元发展简史（按年代） On a Remarkable Case of Uneven Distribution of Light in a Diffraction Grating Spectrum R W Wood 1902 Proc. Phys. Soc. London 18 269 SURFACE-PLASMON RESONANCE EFFECT IN GRATING DIFFRACTION RITCHIE RH, ARAKAWA ET, COWAN JJ, et al （1968） PRL, 21 , 1530
Mietheory,1908Exactsolutionof sphere,spherical symmetrystructureAbsorption,scattering,andextinctionZenneck(1907)&Sommerfeld(1909)Demonstrated(theoretically)thatradiofrequencysurfaceEMwaves occurattheboundary of twomediawhen onemediumiseither a"lossy"dielectric,ora metal,and theother is a loss-freemedium.They also suggested that it is the"lossy"(imaginary)part ofthedielectricfunction thatis responsibleforbindingtheEMwavetotheinterface
5 Mie theory , 1908 Exact solution of sphere, spherical symmetry structure Absorption, scattering, and extinction
Fano(1939)Suggested that surface EM waves were responsible for the strikinganomalies in the continuous source diffraction spectra of metallicgratings-'Wood'sAnomalies'According to Fano : Surface EM wave, at metal-air interfaces, areevanescent waves whose wave vectors are greater than those of theincident and diffracted bulk EM waves, and that the gratingaugments the wave vector of the incident EM waves enabling themtocouplewiththe surfaceEM waves.6
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