关于金纳米圆柱环折射率灵敏度的规律研究
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摘要
基于边界元理论对不同形状和大小的金纳米粒子进行了仿真和理论分析,通过在不同折射率的介质中得到的消光光谱,得出相应的灵敏度曲线.经过多次的拟合和理论分析,发现当金纳米圆柱环满足R/h是定值且r=R-h时,折射率灵敏度几乎不变这一规律,为金纳米圆柱环的制备提供了仿真的理论依据.
Based on the theory of BEM gold nanoparticles of different shapes and sizes of the simulation and theoretical analysis, by extinction spectra of different refractive index medium obtained, draw the corresponding sensitivity curve. After many fits and theoretical analysis, found that when gold ring cylinder satisfies R/h is a fixed value and r=R-h, the sensitivity of the refractive index is almost unchanged this law, prepared gold ring cylinder to provide simulation of Theoretical basis.
Based on the theory of BEM gold nanoparticles of different shapes and sizes of the simulation and theoretical analysis, by extinction spectra of different refractive index medium obtained, draw the corresponding sensitivity curve. After many fits and theoretical analysis, found that when gold ring cylinder satisfies R/h is a fixed value and r=R-h, the sensitivity of the refractive index is almost unchanged this law, prepared gold ring cylinder to provide simulation of Theoretical basis.
引文
1杜丹丹.金纳米粒子膜组装结构的LSPR效应研究[D].天津:天津大学精密仪器与光电子工程学院,2007.
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12 Martin O J F,Girard C,Dereux A.Generalized field propagator for electromagnetic scattering and light confinement[J].Phys Rev Lett,1995,74:526-530.
13单磊,董天临.应用边界元法对电磁场计算的分析及优化[J].信息通信,2007,1(1):31-33.
14 Garcia de Abajo F J,Howie A.Relativistic electron energy loss and electron induced photon emission in inhomogeneons dielectrics[J].Phys Rev B,2002,65:115 418.
2周伟,张维,王程,等.贵金属纳米颗粒LSPR现象研究[J].传感技术学报,2010,23(5):630-634.
3 Atwater H.The promise of plasmonics[J].Scientific American,2007,296(4):56-63.
4陈雯菁,元秀华.金属纳米颗粒LSPR光纤生物传感DDA方法研究[J].光学与光电技术,2006,4(4):40-43.
5 Novotny L,van Hulst N.Antennas for light[J].Nature Photonics,2011,5:83-90.
6 Novotny L,Hecht B.Principles of Nano-Optics[M].Cambridge:Cambridge University Press,2006.
7 Anger P,Bharadwaj P,Novotny L.Enhancement and quenching of single-molecule fluorescence[J].Phys Rev Lett,2006,96:113 002.
8 Draine B T.The discrete-dipole approximation and its application to interstellar graphite grains[J].Astrophys J,1988,333:848-872.
9 Draine B T,Flateau P J.Discrete-dipole approximation for scattering calculations[J].J Opt Soc Am A,1994,11:1 491-1 499.
10 Yee K S.Numerical solution of initial boundary value problems involving maxwell’s equations in isotropic media[J].IEEE Trans on Antennas and Propagation,1966,14:302-307.
11 Ward A J,Pendry J B.A program for calculating photonic band structures,Green's functions and transmission/reflection coefficients using a non-orthogonal FDTD method[J].Comp Phys Commun,2000,128:590-621.
12 Martin O J F,Girard C,Dereux A.Generalized field propagator for electromagnetic scattering and light confinement[J].Phys Rev Lett,1995,74:526-530.
13单磊,董天临.应用边界元法对电磁场计算的分析及优化[J].信息通信,2007,1(1):31-33.
14 Garcia de Abajo F J,Howie A.Relativistic electron energy loss and electron induced photon emission in inhomogeneons dielectrics[J].Phys Rev B,2002,65:115 418.